Patent Publication Number: US-2023160567-A1

Title: Electronic module group

Description:
CROSS REFERENCE TO THE RELATED APPLICATIONS 
     This application is continuation of U.S. application Ser. No. 17/389,019, filed Jul. 29, 2021, which is a continuation-in-part of U.S. application ser. No. 16/645,458, filed Jan. 25, 2021, which issued into U.S. Pat. No. 11,162,651 on Nov. 2, 2021, which is the national phase entry of International Application No. PCT/CN2020/070502, filed on Jan. 06, 2020, which is based upon and claims priority to Chinese Patent Application No. 201911420142.2, filed on Dec. 31, 2019, each of which is herein incorporated by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the technical field of integrated electronic module groups, and more specifically to a lamp module group or a speaker module group. 
     BACKGROUND 
     At present, LED lamps and speakers can be designed with a module group structure. This structure can facilitate maintenance and save costs. For example, the so-called lamp module group can be formed by integrating a light source and/or speaker and a power supply, which is assembled in a lamp housing to form a lamp. Once the lamp fails to work, the module group is damaged in most of the cases. Then, only the damaged module group needs to be replaced, which saves the cost of the lamp housing. However, in this way, when a module group without a waterproof function is installed in the lamp housing, it should be ensured that the lamp housing can waterproof, so that the LED lamp can meet the requirements of outdoor work. 
     SUMMARY 
     It is to be understood that this summary is not an extensive overview of the disclosure. This summary is exemplary and not restrictive, and it is intended to neither identify key or critical elements of the disclosure nor delineate the scope thereof. The sole purpose of this summary is to explain and exemplify certain concepts of the disclosure as an introduction to the following complete and extensive detailed description. 
     Disclosed is an electronic module comprising a first housing defining a housing cavity, the first housing defining a first end and a second end positioned opposite from the first end, the first end defined by a shaft of the first housing, the shaft defining external threading, the first housing defining a housing opening to the housing cavity at the second end; an LED lamp board positioned within the housing cavity, the LED lamp board configured to emit light through the housing opening; a power supply driving module positioned within the housing cavity at least partially between the LED lamp board and the shaft; and a first concentric terminal connected in electrical communication with the power supply driving module, the first concentric terminal extending at least partially through the shaft, the first concentric terminal configured to rotatably connect in electrical communication with a second concentric terminal. 
     Also disclosed is a method of manufacturing an electronic module, the method comprising positioning a power supply driving module in a housing cavity of a first housing, the first housing defining a first end and a second end positioned opposite from the first end, the first end defined by a shaft of the first housing; connecting a first concentric terminal in electrical communication with the power supply driving module; positioning the first concentric terminal at least partially within the shaft; and filling the housing cavity at least partially with potting. 
     In some aspects, sides of the LED lamp board and the fastener close to the upper open end of the first housing can be provided with a second sealing layer, a reflecting cup can be sleeved above the second sealing layer, a lens can be sleeved at a center of the reflecting cup, and the lens can be configured to be fastened on a light emitting part of the LED lamp board. 
     In some aspects, a first sealing layer can be provided between the LED lamp board and the power supply driving module, and the first sealing layer can be configured for sealing and fixing the LED lamp board, the power supply driving module, and the wires together in the first housing. 
     In some aspects, an insulating sheet defining a ring structure can be provided on an inner wall of an end of the first housing close to the shaft, a lower surface of the insulating sheet and an inner bottom of the first housing can be attached to each other, and an upper surface of the insulating sheet can be fixed inside the first housing via the first sealing layer. 
     In some aspects, the second concentric terminal can comprise: a first insulating casing, a conductive ring, a conductive spring, and a first insulating boss, wherein the second concentric terminal can comprise a columnar structure, a bore can be provided above the first insulating casing, a bottom of the bore can be provided with the first insulating boss, a center of the first insulating boss can be embedded with a conductive post, an inner wall of the bore can be provided with the conductive ring, the conductive spring protruding toward an axial centerline direction of the conductive ring can be provided on an annular inner wall of the conductive ring, an outer wall of the conductive ring can be connected to a wire, and a lower portion of the conductive post can extend downward from a center of the first insulating boss and can be connected to the wire; the conductive ring can be configured to insert the first concentric terminal; a first limiting boss protruding outward can be provided on a circumferential outer wall of an end of the first insulating casing close to the bore, and the first limiting boss and the bore end can face the first concentric terminal, and can be configured to cooperate with the first concentric terminal. 
     In some aspects, the first concentric terminal can comprise: a second insulating casing, a second insulating boss, an outer conductive sleeve, and a first inner conductive sleeve, wherein the second insulating casing can comprise a columnar structure, a lower surface of the columnar structure can be provided with a bore, a second insulating boss can be provided in the bore, a side of the second insulating boss close to the bore can be provided with a third insulating sleeve, and a diameter of the third insulating sleeve can be smaller than a diameter of the second insulating boss; an outer conductive sleeve can be provided between the third insulating sleeve and the second insulating casing, the first insulating boss and the second insulating boss can be embedded with a second inner conductive sleeve, one end of the second inner conductive sleeve close to a bottom of the groove can be provided with a wire, and the wire can be at one end away from the second inner conductive sleeve penetrates and can extend out of the second insulating casing, a wire can also be connected to an outer wall of the outer conductive sleeve, and the wire at one end away from the outer conductive sleeve can penetrate and extend out of the second insulating casing; and the second inner conductive sleeve can be further embedded with a first inner conductive sleeve, a lower end of the first inner conductive sleeve can be provided with an opening having a circular structure, and the opening can be configured for installing the second concentric terminal; a circumferential outer wall of an end of the second insulating casing close to the opening of a circular groove can be provided with a second limiting boss, the second limiting boss and the second insulating casing can each be configured to be inserted into and fixed in the shaft, an end of the shaft away from the first housing can be further provided with a first limiting groove, and a diameter of a notch of the first limiting groove can be larger than a diameter of a central through hole of the shaft; and the first limiting groove can be configured for embedding the second limiting boss. 
     In some aspects, a circumferential outer wall of the shaft can be provided with an external thread, the external thread can be configured for installing the second housing, the second housing can comprise a tubular structure, an installing table having a tapered structure can be provided below the tubular structure, an end of the installing table away from the second housing can be provided with a through hole, the through hole can be configured for installing the first limiting boss of the second concentric terminal, a lower surface of the first limiting boss can be connected to an inner bottom surface of the installing table, and an upper surface of the first limiting boss can be provided with a seal. 
     In some aspects, a circumferential outer wall of an end of the first housing away from the shaft can be provided with an external thread, the external thread can be configured for installing a cover, a center of the cover can be provided with a through installing hole, an inner bottom of one end of the installing hole away from the first housing can be embedded with a sealing lens, a side of the sealing lens away from an inner ground of the installing hole can be provided with a gasket having a ring structure, and the gasket can be sleeved on a circumferential outer wall of an end of the external thread of the first housing. 
     In some aspects, the cover can be any one selected from the group consisting of a flat lid, a curved lid, a round beveled cover, a vertical lamp cover, a long tube cover, and a square beveled cover. 
     In some aspects, an end of the second housing away from the first housing can be fixed on a lamp holder, the lamp holder can be fixed on a base by a fixing rod, an inner wall of the lamp holder can be spirally embedded with a cooling pipeline, and both ends of the cooling pipe can extend from an end of the lamp holder close to the fixing rod onto the base; a water storage cavity can be provided in the base, an upper surface of the water storage cavity can be provided with a water inlet and a water outlet, the water inlet can be connected to a water inlet pipe, the water outlet can be connected to a water outlet pipe, and the water inlet pipe and the water outlet pipe can be connected to two open ends of the cooling pipeline, respectively; one end of the lamp holder close to the second housing can be provided with a ventilation plate, one end of the ventilation plate away from the second housing can be provided with a fan and a water pressure adjusting device, the fan can be provided to be close to the ventilation plate, one end of the water pressure adjusting device can be connected to a driving device, and the other end can be connected to an end of the cooling pipeline close to the water outlet pipe; and a circumferential outer wall of the water storage cavity can be further provided on a water injecting port. 
     Advantages of the present invention are as follows. 
     The electronic module group provided by the present invention can optionally achieve heat conduction and heat dissipation, waterproofing, and rotational coaxial connection power extraction by the provided first housing, second housing, first concentric terminal, and second concentric terminal, and can realize the waterproofing between the first housing and the second housing by the first housing causing a second housing where the first concentric terminal and the second concentric terminal can be located to squeeze a seal. 
     The first housing and the second housing can be connected into one body by a thread, which may conduct the heat of the power supply driving module and the LED lamp board. Specifically, the heat of the power supply driving module and the LED lamp board can be conducted to the second housing where the second concentric terminal can be located through the connection between the first housing and the second housing, thereby achieving the purpose of dissipating the heat of the power supply driving module and the LED lamp board. 
     By the provided second concentric terminal and first concentric terminal, the coaxial rotational connection can be formed and maintained and power transmission can occur during thread installation of the first housing and the second housing are achieved. 
     The lamp module group can comprise a structure that can conduct heat, be waterproof, and provide rotational coaxial connection power transmission. Meanwhile, the external thread provided on the first housing, the external thread provided on the shaft, and the first concentric terminal in conjunction with the second concentric terminal can be combined with other accessories or extension accessories to form a variety of lamps, thereby improving the use range of the lamp module group. 
     During use, the first concentric terminal and the second concentric terminal are each provided with a waterproof structure. The power supply driving module can be filled with glue between the first concentric terminal and the LED lamp board, thereby forming a first sealing layer in the first housing so that the power supply driving module can be completely sealed in the first sealing layer. A side of the LED lamp board away from the power supply driving module can also be fixed in the first housing by a fastener. An upper surface of the fastener can be provided with a second sealing layer. The second sealing layer can be configured to seal a gap between the fastener and the LED lamp board. Thus, the LED lamp board and the first concentric terminal can waterproof the first housing. The power supply driving module, the power terminal of the LED lamp board, and the first concentric terminal can each be enabled to achieve the purpose of waterproofing and modularization. During use, the first concentric terminal and the second concentric terminal can be plugged into each other to achieve electrical conduction, such as power transmission. An end of the second concentric terminal that is positioned away from the first concentric terminal can receive power, so that the electrical conduction, or transmission, of the first concentric terminal can be achieved. The power supply driving module can be energized. After the power supply driving module is energized, the LED lamp board can light. 
     When the lamp module fails to work, the lamp module group installed in the lamp cover can be directly detached and replaced, thereby reducing the waste caused by the direct replacement of the entire lamp cover. The lamp module group can be sealed and waterproofed by the first sealing layer, the second sealing layer, and the first concentric terminal and second concentric terminal with sealing and waterproofing capability, which can facilitate replacement of the lamp module group after failure. Meanwhile, after the LED lamp fails, the lamp module group can be directly replaced rather than replacing both the lamp housing and the lamp module group together. 
     The first housing and the second housing can each be made of a metal material. The first housing can tightly contact each of the first concentric terminal, the power supply driving module and the LED lamp board through the first sealing layer, and thus the thermal energy generated by the power supply driving module and the LED lamp board can be conducted through the first housing and the second housing. Therefore, the heat dissipation efficiency of the power supply driving module and the LED lamp board can be improved, the probability of failure of the power supply driving module, and the LED lamp board due to overheating can be reduced, and the service life of the power supply driving module and the LED lamp board can be improved. Meanwhile, the aging of the first concentric terminal, the second concentric terminal, and the wire can be reduced, effectively extending the service life of the lamp module group. 
     Various implementations described in the present disclosure may include additional systems, methods, features, and advantages, which may not necessarily be expressly disclosed herein but will be apparent to one of ordinary skill in the art upon examination of the following detailed description and accompanying drawings. It is intended that all such systems, methods, features, and advantages be included within the present disclosure and protected by the accompanying claims. The features and advantages of such implementations may be realized and obtained by means of the systems, methods, features particularly pointed out in the appended claims. These and other features will become more fully apparent from the following description and appended claims, or may be learned by the practice of such exemplary implementations as set forth hereinafter. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The features and components of the following figures are illustrated to emphasize the general principles of the present disclosure. The drawings are not necessarily drawn to scale. Corresponding features and components throughout the figures may be designated by matching reference characters for the sake of consistency and clarity. 
         FIG.  1    is a schematic structural diagram of an electronic module group, which is a lamp module group in accordance with one aspect of the present disclosure; 
         FIG.  2    is a schematic diagram of an exploded structure of the lamp module group of  FIG.  1   ; 
         FIG.  3    is a schematic structural diagram of a second concentric terminal of the lamp module group of  FIG.  1   ; 
         FIG.  4    is a schematic structural diagram of a first concentric terminal of the lamp module group of  FIG.  1   ; 
         FIG.  5    is a schematic structural diagram of a connection between a first housing of the lamp module group of  FIG.  1    and a second housing in accordance with another aspect of the present disclosure; 
         FIG.  6    is a schematic structural diagram of the lamp module group of  FIG.  1   , the second housing of  FIG.  5   , and a cover in accordance with another aspect of the present disclosure; 
         FIG.  7    is a schematic structural diagram of a lamp holder in accordance with another aspect of the present disclosure; 
         FIG.  8    is a schematic structural diagram of a water pressure adjusting device in accordance with another aspect of the present disclosure; 
         FIG.  9    is a schematic structural diagram of a top view of a water pressure adjusting device in accordance with another aspect of the present disclosure; 
         FIG.  10    is a schematic structural diagram of a cooling pipeline in accordance with another aspect of the present disclosure; 
         FIG.  11    is a schematic structural diagram of a water storage cavity in accordance with another aspect of the present disclosure; 
         FIG.  12    is a schematic structural diagram of a connection between a plunger pipe and a cooling pipeline in accordance with another aspect of the present disclosure; and 
         FIG.  13    is a schematic structural diagram of a connection between a third connecting rod, a third shaft sleeve, and a fourth shaft sleeve in accordance with another aspect of the present disclosure. 
         FIG.  14    is a cross-sectional schematic diagram of a concentric electrical connector in accordance with another aspect of the present disclosure. 
         FIG.  15    is a cross-sectional schematic diagram of another aspect of the lamp module in accordance with another aspect of the present disclosure. 
         FIG.  16    is an exploded schematic diagram of the lamp module of  FIG.  15   . 
         FIG.  17    is an exploded schematic diagram of another aspect of the lamp module in accordance with another aspect of the present disclosure. 
         FIG.  18    is an exploded schematic diagram of another aspect of the lamp module and a power cable in accordance with another aspect of the present disclosure. 
         FIG.  19    is a cross-sectional schematic diagram of the lamp module and the power cable of  FIG.  18   . 
         FIG.  20    is a top perspective view of the lamp module of  FIG.  18    in a partially disassembled state. 
         FIG.  21 A  is a cross-sectional schematic diagram of the lamp module of  FIG.  1   , another aspect of the cover, and a bollard post, shown in an exploded configuration, in accordance with another aspect of the present disclosure. 
         FIG.  21 B  is a schematic diagram of the cover, the lamp module, and the bollard post of  FIG.  21 A , shown configured as a bollard in accordance with another aspect of the present disclosure. 
         FIG.  21 C  is a schematic view of the bollard of  FIG.  21 B  with a shroud in accordance with another aspect of the present disclosure. 
         FIG.  22 A  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 B  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 C  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 D  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 E  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 F  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 G  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 H  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 I  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  22 J  is a top view and a side view of the lamp module group comprising the lamp module of  FIG.  1    and another aspect of a cover in accordance with another aspect of the present disclosure. 
         FIG.  23 A  is a schematic diagram of another aspect of the lamp module group configured as a pendant light and shown in an exploded state. 
         FIG.  23 B  is a schematic diagram of another aspect of the lamp module group configured as a pendant light and shown in an exploded state. 
         FIG.  23 C  is a schematic diagram of another aspect of the lamp module group configured as a pendant light and shown in both an exploded state and an assembled state. 
         FIG.  23 D  is a schematic diagram of another aspect of the lamp module group configured as a pendant light and shown in both an exploded state and an assembled state. 
         FIG.  24 A  is an exploded cross-sectional view of another aspect of the lamp module group configured as a spotlight in accordance with another aspect of the present disclosure. 
         FIG.  24 B  is a perspective view of the lamp module group of  FIG.  24 A , shown in an assembled state. 
         FIG.  24 C  is an exploded view of another aspect of the lamp module group configured as a spotlight in accordance with another aspect of the present disclosure. 
         FIG.  24 D  is an exploded cross-sectional view of another aspect of the lamp module group configured as a spotlight in accordance with another aspect of the present disclosure. 
         FIG.  25    is an exploded view of another aspect of the lamp module group comprising a two-piece lamp holder and a stake in accordance with another aspect of the present disclosure. 
         FIG.  26    is an exploded view of another aspect of the lamp module group comprising another aspect of a shroud and another aspect of the bollard post in accordance with another aspect of the present disclosure. 
         FIG.  27    is a cross-sectional view of another aspect of the lamp module group configured as a sconce in accordance with another aspect of the present disclosure. 
         FIG.  28    is an exploded view of the lamp module group of  FIG.  27   . 
         FIG.  29    is cross-sectional view of another aspect of the lamp module group configured as a sconce in accordance with another aspect of the present disclosure. 
         FIG.  30    is a perspective view of the lamp module group of  FIG.  29   . 
         FIG.  31    is an exploded view of a speaker module group in accordance with another aspect of the present disclosure. 
         FIG.  32    is a cross-sectional view the speaker module group of  FIG.  31    and the power cable of  FIG.  18   . 
         FIG.  33    is a partial cross-sectional view of another aspect of an accessory of the electronic module group, the power cable, and another aspect of a power cable in accordance with another aspect of the present disclosure. 
         FIG.  34    is an exploded view of the catenary mount of the electronic module group of  FIG.  33   . 
     
    
    
     Among them,  1 —light-emitting diode (hereinafter “LED”) lamp board,  2 —power supply driving module,  3 —first concentric terminal,  4 —first housing,  5 —inner rib,  6 —shaft,  7 —second concentric terminal,  8 —fastener,  9 —wire,  10 —insulating sheet,  11 —first sealing layer,  12 —second sealing layer,  13 —reflecting cup,  14 —lens,  15 —first insulating casing,  16 —conductive ring,  17 —conductive spring,  18 —first insulating boss,  19 —second insulating boss,  20 —conductive post,  21 —second insulating casing,  22 —outer conductive sleeve,  23 —first inner conductive sleeve,  24 —first limiting boss,  25 —second inner conductive sleeve,  26 —third insulating sleeve,  27 —second limiting boss,  28 —first limiting groove,  29 —second housing,  30 —sealing ring ,  31 —installing table,  32 —gasket,  33 —sealing lens,  34 —cover,  35 —lamp holder,  36 —base,  37 —fixing rod,  38 —cooling pipeline,  39 —ventilation plate,  40 —first gear,  41 —second gear,  42 —first rotating shaft,  43 —fourth protruding column,  44 —fixed disc,  45 —first connecting rod,  46 —third shaft sleeve,  47 —blade,  48 —third rotating shaft,  49 —motor,  50 —fourth rotating shaft,  51 —bearing,  52 —slideway,  53 —sliding rod,  54 —first connecting plate,  55 —second connecting plate,  56 —fourth shaft sleeve,  57 —fourth connecting plate,  58 —first shaft sleeve,  59 —fifth rotating shaft,  60 —fifth connecting plate,  61 —second connecting rod,  63 —third connecting rod,  64 —third protruding column,  65 —second shaft sleeve,  66 —water storage cavity,  67 —water outlet,  68 —water inlet,  69 —water outlet pipe,  70 —water inlet pipe,  71 —water injecting port,  72 —piston pipe,  73 —plunger rod,  74 —movable plug,  75 —first check valve, and  76 —second check valve. 
     DETAILED DESCRIPTION OF THE DRAWINGS 
     Preferred aspects of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred aspects described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention. The present disclosure can be understood more readily by reference to the following detailed description, examples, drawings, and claims, and the previous and following description. However, before the present devices, systems, and/or methods are disclosed and described, it is to be understood that this disclosure is not limited to the specific devices, systems, and/or methods disclosed unless otherwise specified, and, as such, can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting. 
     The following description is provided as an enabling teaching of the present devices, systems, and/or methods in its best, currently known aspect. To this end, those skilled in the relevant art will recognize and appreciate that many changes can be made to the various aspects of the present devices, systems, and/or methods described herein, while still obtaining the beneficial results of the present disclosure. It will also be apparent that some of the desired benefits of the present disclosure can be obtained by selecting some of the features of the present disclosure without utilizing other features. Accordingly, those who work in the art will recognize that many modifications and adaptations to the present disclosure are possible and can even be desirable in certain circumstances and are a part of the present disclosure. Thus, the following description is provided as illustrative of the principles of the present disclosure and not in limitation thereof. 
     As used throughout, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “an element” can include two or more such elements unless the context indicates otherwise. 
     Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint. 
     For purposes of the current disclosure, a material property or dimension measuring about X or substantially X on a particular measurement scale measures within a range between X plus an industry-standard upper tolerance for the specified measurement and X minus an industry-standard lower tolerance for the specified measurement. Because tolerances can vary between different materials, processes and between different models, the tolerance for a particular measurement of a particular component can fall within a range of tolerances. 
     As used herein, the terms “optional” or “optionally” mean that the subsequently described event or circumstance can or cannot occur, and that the description includes instances where said event or circumstance occurs and instances where it does not. 
     The word “or” as used herein means any one member of a particular list and also includes any combination of members of that list. Further, one should note that conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain aspects include, while other aspects do not include, certain features, elements and/or steps. Thus, such conditional language is not generally intended to imply that features, elements and/or steps are in any way required for one or more particular aspects or that one or more particular aspects necessarily include logic for deciding, with or without user input or prompting, whether these features, elements and/or steps are included or are to be performed in any particular aspect. 
     Disclosed are components that can be used to perform the disclosed methods and systems. These and other components are disclosed herein, and it is understood that when combinations, subsets, interactions, groups, etc. of these components are disclosed, that while specific reference of each various individual and collective combinations and permutations of these may not be explicitly disclosed, each is specifically contemplated and described herein, for all methods and systems. This applies to all aspects of this application including, but not limited to, steps in disclosed methods. Thus, if there are a variety of additional steps that can be performed it is understood that each of these additional steps can be performed with any specific aspect or combination of aspects of the disclosed methods. 
     Disclosed is an electronic module group and associated methods, systems, devices, and various apparatus. The electronic module group can comprise an LED lamp board and/or a speaker, a power supply driving module, a first concentric terminal, a first housing, and various accessories, which can be attached thereto. It would be understood by one of skill in the art that the disclosed electronic module group is described in but a few exemplary aspects among many. No particular terminology or description should be considered limiting on the disclosure or the scope of any claims issuing therefrom. 
     As shown in  FIGS.  1 - 6   , an aspect of the present invention discloses an electronic module group  100 , which can be referred to as a “lamp module group  100 ” for the aspects of  FIGS.  1 - 6    and some other aspects of the present disclosure. The lamp module group  100  can comprise a lamp module  101 . In some aspects, such as those shown in  FIGS.  31 - 32   , the electronic module group  100  can be a “speaker module group  100 ,” and the speaker module group  100  can comprise a speaker module  3101 . In some aspects, it is contemplated that the electronic module group  100  can comprise one or more lamp modules  101  and one or more speaker modules  3101 . 
     Returning to the aspects of  FIGS.  1 - 6   , the lamp module group  100  can comprise the LED lamp board  1 , the power supply driving module  2 , the first concentric terminal  3 , and the first housing  4 . In some usages, the LED lamp board  1 , the power supply driving module  2 , the first concentric terminal  3 , and the first housing  4  can be referred to as a lamp module  101  of the lamp module group  100 ; however, the lamp module  101  can include additional components of the lamp module group  100 , as well. The lamp module group  100  can be modular. The lamp module  101  can be waterproof. For example, in the present aspect, the lamp module  101  can be IP68 rated, or better, under International Electrotechnical Commission (“IEC”) standard 60529. The lamp module group  100  can optionally comprise an assortment of accessories, which can be coupled to other components of the lamp module group  100 , such as the first housing  4  or other components, to configure the lamp module group  100  for various different uses. For example, various configurations disclosed in different aspects of the present disclosure comprise recessed lights, spotlights, bollard lights, path lights, pendant lights, and sconces. These applications should not be viewed as limiting. 
     The first housing  4  can be a cylindrical structure. The inner rib  5  can be a ring structure, which can be provided on an inner wall of the first housing  4  close to an upper open end. In some aspects, the inner rib  5  can be a convex ring. An upper surface of the inner rib  5  can be installed on, or coupled to, the LED lamp board  1  by the fastener  8 . The power supply driving module  2  can be provided below the LED lamp board  1  with a space, or interval, defined between the power supply driving module  2  and the LED lamp board  1 . An output end of the power supply driving module  2  can be connected to a power supply input end of the LED lamp board  1  through the wire  9 . An input end of the power supply driving module  2  can be connected to an output end of the first concentric terminal  3  through the wire  9 . A lower surface of the first housing  4  can be provided with the shaft  6 . The shaft  6  can be a protruding column. The shaft  6  can be a ring structure. The shaft  6  and the first housing  4  can be in communication with each other. One end of the first concentric terminal  3  close to the power supply driving module  2  can be fixed in the first housing  4 , and the other end of the first concentric terminal  3  can extend out of an inner cavity of the shaft  6  and can be connected to the second concentric terminal  7 . The first concentric terminal  3  and the second concentric terminal  7  can be one aspect of a concentric electrical connector assembly. In the present aspect, the first concentric terminal  3  can be a male concentric terminal, and the second concentric terminal  7  can be a female concentric terminal. In some aspects, the first concentric terminal  3  can be a female concentric terminal, and the second concentric terminal  7  can be a male concentric terminal. An end of the second concentric terminal  7 , which can be positioned away from the first concentric terminal  3 , can be installed in the second housing  29 . The sealing ring  30  can be provided between the first housing  4  and the second housing  29 . In some aspects, the sealing ring  30  can be an O-ring. The sealing ring  30  can comprise a material such as rubber, polymer, wax, for example and without limitation. 
     The lamp module group  100  can be configured to provide heat conduction and heat dissipation, waterproofing, and rotational coaxial connection power transmission by the provided first housing  4 , second housing  29 , first concentric terminal  3  and second concentric terminal  7 . A waterproof seal can be formed between the first housing  4  and the second housing  29  by squeezing the sealing ring  30  between the first housing  4  and the second housing  29 . The first concentric terminal  3  and the second concentric terminal  7  can be located between the first housing  4  and the second housing  29 . 
     The first housing  4  and the second housing  29  can be coupled together by a threaded connection, which can conduct the heat of the power supply driving module  2  and the LED lamp board  1 . Specifically, the heat of the power supply driving module  2  and the LED lamp board  1  can be conducted to the second housing  29  where the second concentric terminal  7  can be located through the connection between the first housing  4  and the second housing  29 , thereby dissipating the heat of the power supply driving module  2  and the LED lamp board  1 . 
     Threaded installation of the second housing  29  on the first housing  4  can form the coaxial rotational connected between the second concentric terminal  7  and first concentric terminal  3 , and power can be transmitted between the second concentric terminal  7  and first concentric terminal  3 . 
     The lamp module group  100  can be structurally configured to conduct heat, be waterproof, and transmit power through the rotational coaxial connection. Meanwhile, the external thread provided on the first housing  4 , the external thread provided on the shaft  6 , and the first concentric terminal  3  in conjunction with the second concentric terminal  7  can be combined with other accessories or extension accessories to form a variety of lamps, for example and without limitation, thereby providing a flexible range of uses for the lamp module group  100 . 
     The first concentric terminal  3  and the second concentric terminal  7  can each be provided with a waterproof structure. The first housing  4  can be filled with glue between the first concentric terminal  3  and the LED lamp board  1 , thereby forming the first sealing layer  11  in the first housing  4  so that the power supply driving module  2  can be completely sealed, or embedded, in the first sealing layer  11 . A side of the LED lamp board  1  positioned away from the power supply driving module  2  can also be fixed in the first housing  4  by the fastener  8 . An upper surface of the fastener  8  can be covered with the second sealing layer  12 . The second sealing layer  12  can be configured to seal a gap between the fastener  8  and the LED lamp board  1 . Thus, the LED lamp board  1  and the first concentric terminal  3  can be sealed, such as waterproofed, in the first housing  4 . The power supply driving module  2 , the power terminal of the LED lamp board  1 , and the first concentric terminal  3  can be sealed, such as waterproofed, while providing modular capabilities. When in use, the first concentric terminal  3  and the second concentric terminal  7  are plugged into each other to achieve conduction. An end of the second concentric terminal  7  away from the first concentric terminal  3  can be configured to conduct power, so that electricity can be conducted, or transmitted, to the first concentric terminal  3 . The power supply driving module  2  can be energized. After the power supply driving module  2  is energized, the LED lamp board  1  can be lit, and the lamp module group  100  can emit light. 
     When the lamp module  101  fails to work, the lamp module  101  that is installed in the lamp cover can be directly detached and replaced, thereby reducing the waste that would be caused by the direct replacement of the entire lamp cover. Meanwhile, the lamp module  101  can be sealed and/or waterproofed by the first sealing layer  11 , the second sealing layer  12 , and the first concentric terminal  3  and second concentric terminal  7  which can facilitate easy replacement of the lamp module  101  after failure. Meanwhile, after the LED lamp fails, the lamp module  101  can be directly replaced rather than replacing the lamp housing and the lamp module  101  together. 
     The lamp module  101  can comprise the first concentric terminal  3 , the LED lamp board  1 , the power supply driving module  2  and the first housing  4  together, and the lamp module  101  can be configured to electrically connect to the power supply by engaging with the second concentric terminal  7 . The lamp module group  100  can comprise the first concentric terminal  3 , the LED lamp board  1 , the power supply driving module  2 , and the second concentric terminal  7  together. The lamp module  101  can receive power through one end of the second concentric terminal  7 , which can be connected to a power supply. The first concentric terminal  3  can be connected to the second concentric terminal  7  and can conduct the electricity to the power supply driving module  2 , thereby supplying electrical power to the power supply driving module  2  and the LED lamp board  1 . 
     The first housing  4  and the second housing  29  can each be made of a metal material. The first housing  4  can be in thermal communication with each of the first concentric terminal  3 , the power supply driving module  2  and the LED lamp board  1  through the first sealing layer  11 , and the thermal energy generated by the power supply driving module  2  and the LED lamp board  1  can be conducted through the first housing  4  and the second housing  29 . Heat can be conducted away from the power supply driving module  2  and the LED lamp board  1  and dissipated, which can reduce the probability of failure of the power supply driving module  2  and the LED lamp board  1  due to overheating, and extend the service life of the power supply driving module  2  and the LED lamp board  1 . Meanwhile, the aging of the first concentric terminal  3 , the second concentric terminal  7 , and the wire  9  can be reduced, effectively extending the service life of the lamp module group  100 . 
     As shown in  FIGS.  1 - 2   , sides of the LED lamp board  1  and the fastener  8  close to the upper open end of the first housing  4  can be provided, such as being covered for example and without limitation, with the second sealing layer  12 . The reflecting cup  13  can fit over the second sealing layer  12 . The lens  14  can be positioned at a center of the reflecting cup  13 . The lens  14  can be coupled over a light emitting part of the LED lamp board. 
     The second sealing layer  12  can prevent water or mist from entering the LED lamp board  1 , such as through one of the holes that receive the fasteners  8  to mount the LED lamp board  1 . The reflecting cup  13  can reflect light emitted by the LED lamp board  1  to make the lamp module  101  brighter, and the reflecting cup  13  can cover an upper surface of the LED lamp board  1  to further seal against water and moisture. The lens  14  can focus the LED light, and further waterproof the LED lamp board  1 . 
     As shown in  FIGS.  1 - 2   , the first sealing layer  11  can be provided between the LED lamp board  1  and the power supply driving module  2 . The first sealing layer  11  can be configured for sealing and fixing the LED lamp board  1 , the power supply driving module  2 , and the wires  9  together in the first housing  4 . 
     The first sealing layer  11  can seal, or waterproof, the LED lamp board  1  and the power supply driving module  2  in the first housing  4 , so that the LED lamp board  1  and the power supply driving module  2  can form one integral member via the first sealing layer  11 . 
     As shown in  FIGS.  1 - 2   , the insulating sheet  10  can be shaped as a ring structure and can be provided on an inner wall of an end of the first housing  4  close to the shaft  6 . A lower surface of the insulating sheet  10  and an inner bottom of the first housing  4  can be attached to each other. An upper surface of the insulating sheet  10  can be fixed inside the first housing  4  via the first sealing layer  11 . 
     The insulating sheet  10  can insulate and separate the first sealing layer  11  and the first housing  4 . The insulating sheet  10  and/or the first sealing layer  11  can provide isolation and padding between the first housing  4  and the first concentric terminal  3 . The first sealing layer  11  can be poured into the first housing  4  as a liquid or gel to fill the first housing  4 , and the first sealing layer  11  can dry or cure to form a solid layer. 
     As shown in  FIG.  3   , the second concentric terminal  7  can comprise the first insulating casing  15 , the conductive ring  16 , the conductive spring  17 , and the first insulating boss  18 . The conductive ring  16  can comprise a metal in some aspects. The first insulating boss  18  can comprise a plastic material in some aspects. The second concentric terminal  7  can be a columnar structure. A bore can be provided above the first insulating casing  15 . A bottom of the bore can be provided with the first insulating boss  18 . A center of the first insulating boss  18  can be embedded with the conductive post  20 . In some aspects, the conductive post  20  can comprise a metal. An inner wall of the bore can be provided with the conductive ring  16 . The conductive spring  17  can protrude toward an axial centerline direction of the conductive ring  16 . The conductive spring  17  can be provided on an annular inner wall of the conductive ring  16 . An outer wall of the conductive ring  16  can be connected to the wire  9 . A lower portion of the conductive post  20  can extend downward from a center of the first insulating boss  18  and can be connected to the wire  9 . The conductive ring  16  can be configured to insert the first concentric terminal  3 . A first limiting boss  24  can be provided on a circumferential outer wall of an end of the first insulating casing  15  close to the bore, and the first limiting boss  24  can protrude outwards from the circumferential outer wall. When coupling the second concentric terminal  7  with the first concentric terminal  3 , the first limiting boss  24  and the bore end can face the first concentric terminal  3 , and can be configured to engage with the first concentric terminal  3 . 
     The second concentric terminal  7  can be configured for plugging into the first concentric terminal  3  and forming an electrical connection, so that the second concentric terminal  7  conducts power to the the first concentric terminal  3 , which conducts the electricity to the power supply driving module  2 , and then lights the LED lamp board  1  via the power supply driving module  2 . 
     The conductive spring  17  and the conductive post  20  of the second concentric terminal  7  are configured to receive the first concentric terminal  3 . The conductive spring  17  can press the first concentric terminal  3  into a power supply end of the second concentric terminal  7 , so that the first concentric terminal  3  can be fully in contact with the conductive post  20 . By firmly engaging the first concentric terminal  3  with the second concentric terminal  7 , reliable electrical communication can be maintained between the first concentric terminal  3  and the second concentric terminal  7 , which can prevent disruptions to the power attributed to poor contact. 
     As shown in  FIG.  4   , the first concentric terminal  3  can comprise the second insulating casing  21 , the second insulating boss  19 , the outer conductive sleeve  22 , and the first inner conductive sleeve  23 . In some aspects, the second insulating boss  19  can comprise a plastic material. In some aspects, the outer conductive sleeve  22  and/or the first inner conductive sleeve  23  can comprise metal. In some aspects, the outer conductive sleeve  22  and/or the first inner conductive sleeve  23  can define a tubular structure. The second insulating casing  21  can be a columnar structure. A lower surface of the columnar structure can define a bore. A second insulating boss  19  can be provided in the bore. A side of the second insulating boss close to the bore can be provided with the third insulating sleeve  26 . In some aspects, the third insulating sleeve  26  can comprise a plastic material. A diameter of the third insulating sleeve is smaller than a diameter of the second insulating boss  19 . The outer conductive sleeve  22  can be provided between the third insulating post and the second insulating casing  21 . The first insulating boss  18  and the second insulating boss  19  can be embedded with the second inner conductive sleeve  25 . In some aspects, the second inner conductive sleeve  25  can comprise metal. In some aspects, the second inner conductive sleeve  25  can define a tubular shape. One end of the second inner conductive sleeve  25  close to a bottom of the bore can be provided with the wire  9 . The wire  9  at one end away positioned from the second inner conductive sleeve  25  can penetrate and extend out of the second insulating casing  21 . Another wire  9  can be connected to an outer wall of the outer conductive sleeve  22 . The second inner conductive sleeve  25  can be embedded within the first inner conductive sleeve  23 . The lower end of the first inner conductive sleeve  23  can define an opening, which can define a circular shape. The opening can be configured for mating the second concentric terminal  7  with the first concentric terminal  3 . A circumferential outer wall of an end of the second insulating casing  21  positioned close to the opening of a circular groove can be provided with the second limiting boss  27 . The second limiting boss  27  and the second insulating casing  21  can each be configured to be inserted into and fixed in the shaft  6 . An end of the shaft  6  positioned away from the first housing  4  can be provided with the first limiting groove  28 . A diameter of the first limiting groove  28  can be larger than a diameter of a central through hole of the shaft  6 . The first limiting groove  28  can be configured for embedding the second limiting boss  27 . 
     Further, both the first concentric terminal  3  and the second concentric terminal  7  can achieve 360-degree rotation after being plugged, and can further ensure that the power-on state is still maintained during the rotation. Moreover, the twisted disconnection of the wire  9  is avoided during the rotation. 
     During use, one end of the first inner conductive sleeve  23  of the first concentric terminal  3  can be inserted into the conductive post  20  of the second concentric terminal  7 . The other end of the first concentric terminal  3  can be a wire  9  end. The wire  9  at the wire  9  end can be electrically connected to the power supply driving module  2 . Meanwhile, the second insulating casing  21 , which can be provided at the wire  9  end of the first concentric terminal  3 , can be inserted into an inner cavity of the first housing  4  and can be collectively sealed and fixed in the first housing via the first sealing layer  11 . One end of the second limiting boss  27  of the first concentric terminal  3  close to the second insulating casing  21  can be closely attached to a groove bottom of a first limiting groove. The second limiting boss  27  can be completely placed in the first limiting groove. Thus, the second insulating casing  21  and the second limiting boss  27  of the first concentric terminal  3  can be completely located in the shaft  6  and the inner cavity of the first housing. 
     As shown in  FIGS.  3 - 5   , the conductive ring  16  and the conductive spring  17  of the second concentric terminal  7  can be provided to be communicated with each other through the wire  9 , and can form a third communication line in the second concentric terminal  7 . The conductive post  20  can form a fourth communication line in the bore of the first insulating casing  15  via the first insulating boss  18 . The first inner conductive sleeve  23  and the second inner conductive sleeve  25  of the first concentric terminal  3  can each be made of a metal material. The first conductive sleeve can be a bore provided within the second conductive sleeve, thereby forming a first communication line. The outer conductive sleeve  22  can be separated by the third insulating sleeve  26  from the circumferential outer wall of the second conductive sleeve. The outer conductive sleeve  22  can penetrate the second insulator housing through the wire  9  and can form a second communication line. An end of the first concentric terminal  3  away from the second concentric terminal  7  can be configured to connect to the power supply driving module  2 . An end of the second concentric terminal  7  away from the first concentric terminal  3  can be configured to connect to a power supply. When the first concentric terminal  3  and the second concentric terminal  7  are mated in electrical communication, the first communication line and the third communication line can be connected together in electrical communication, and the second communication line and the fourth communication line can be connected together in electrical communication. When the first concentric terminal  3  and the second concentric terminal  7  are mated in electrical communication, the first communication line can be electrically isolated from the second communication line, and the third communication line can be electrically isolated from the fourth communication line. 
     As shown in  FIG.  5   , a circumferential outer wall of the shaft  6  can be provided with an external thread. The external thread can be configured for installing the second housing  29 . The second housing  29  can be a tubular structure. The installing table  31  can be a tapered structure, which can be provided below the tubular structure. An end of the installing table  31  positioned away from the second housing  29  can be provided with a through hole. The through hole can be configured for receiving the first limiting boss  24  of the second concentric terminal  7 . A lower surface of the first limiting boss  24  can be connected to an inner bottom surface of the installing table  31 . An upper surface of the first limiting boss can be provided with the sealing ring  30 . 
     The second housing  29  can be configured for securing the second concentric terminal  7  and protecting the second concentric terminal  7 . The second housing  29  can maintain the connection between the second concentric terminal  7  and the first concentric terminal  3 . 
     During use, an internal thread provided on an inner wall of one end of the second housing  29  away from the installing table  31  can be installed, or engaged, to the external thread of the shaft  6  provided on the first housing  4 . The sealing ring  30  can be a ring structure, which can be further provided between the second housing  29  and the shaft  6 . The sealing ring  30  can seal a gap between the first housing  4  and the second housing  29  so that the connection can be waterproof. The sealing ring  30  can be compressed between the first housing  4  and the second housing  29  via the shaft  6 , which not only enhances the contact between the first concentric terminal  3  and the second concentric terminal  7 , but also strengthens the seal and waterproofing of the connection. 
     As shown in  FIG.  6   , a circumferential outer wall of an end of the first housing  4  positioned away from the shaft  6  can be provided with an external thread. The external thread can be configured for installing the cover  34 . A center of the cover  34  is provided with an installation through-hole. An inner bottom of one end of the installing hole away from the first housing  4  can be embedded with the sealing lens  33 . A side of the sealing lens  33  positioned away from an inner ground of the installing hole can be provided with the gasket  32 , which can be a ring structure. In some aspects, the gasket  32  can comprise silicone or another elastomer, such as a rubber for example and without limitation. The gasket  32  can be sleeved on a circumferential outer wall of an end of the external thread of the first housing  4 . The cover  34  can be any one selected from the group comprising a flat lid, a curved lid, a round beveled cover, a vertical lamp cover, a long tube cover, and a square beveled cover. 
     The cover  34  can be made of a metal material. The cover  34  can be connected by using the outer thread of the circumferential outer wall of the end of the first housing  4  away from the first concentric terminal  3 . The cover  34  can condense, or focus, light of the LED lamp board  1  and protect the LED lamp board  1 , the reflecting cup  13 , and the lens  14 . The gasket  32  can engage with the cover  34  and the first housing  4  to seal and waterproof the lamp module  101 . The sealing lens  33  can be a columnar piece of glass with a section of a T-shaped structure as shown in  FIG.  6   . For example, the sealing lens  33  can define a stepped shoulder. The sealing lens  33  can prevent water, water vapor, dust, dirt, or other elements from entering the first housing  4  from outside the cover  34 . Thus, water resistance and/or waterproofing is provided. The cover  34  can conduct thermal energy of the first housing  4 , which can further conduct heat away from the power supply driving module  2  and the LED lamp board. 
     As shown in  FIGS.  7 - 13   , an end of the second housing  29  positioned away from the first housing  4  can be fixed on the lamp holder  35 . The lamp holder  35  can be fixed on the base  36  by the fixing rod  37 . An inner wall of the lamp holder  35  can be spirally embedded with the cooling pipeline  38 . Both ends of the cooling pipeline  38  can extend from an end of the lamp holder  35  close to the fixing rod  37  onto the base  36 . The water storage cavity  66  can be provided in the base  36 . An upper surface of the water storage cavity  66  can be provided with the water inlet  68  and the water outlet  67 . The water inlet  68  can be connected to the water inlet pipe  70 . The water outlet  67  can be connected to the water outlet pipe  69 . The water inlet pipe  70  and the water outlet pipe  69  can be connected to two open ends of the cooling pipeline  38 , respectively. One end of the lamp holder  35  close to the second housing  29  can be provided with the ventilation plate  39 . One end of the ventilation plate  39  away from the second housing  29  can be provided with a fan and a water pressure adjusting device. The fan can be provided to be close to the ventilation plate  39 . One end of the water pressure adjusting device can be connected to a driving device, and the other end can be connected to an end of the cooling pipeline  38  close to the water outlet pipe  69 . A circumferential outer wall of the water storage cavity  66  can be further provided on the water injecting port  71 . 
     The first housing  4  can be compatible with various specifications of lamp holders  35 . The lamp holder  35  can have a chandelier structure that is hung on a roof or a cantilever by a lifting ring, or a ceiling structure that is directly installed on the roof or the cantilever by the fastener  8 . Or, the lamp holder  35  can be a floodlight or underwater lamp fixed by the fixing rod  37  and the base  36 . When the lamp holder  35  can be used as a floodlight or underwater lamp, the base  36  can fix the lamp holder  35  by the fixing rod  37  to install the lamp module group  100 . The cooling pipeline  38  can be provided in the lamp holder  35 , and the cooling pipeline  38  can be spirally provided on the inner wall of the lamp holder  35 , and therefore the reduction of the temperature in the lamp holder  35  can be achieved. Since the lamp module can be installed between the lamp holder  35  and the cover  34 , the purpose of heat conduction and heat dissipation for the lamp module group  100  can be achieved by both the lamp holder  35  and the cover  34 . Thus, the cooling pipeline  38  can perform water-cooling circulation through the water storage cavity  66  provided in the base  36 . In addition, a fan can be further provided in the lamp holder  35 . The fan can blow the ventilation plate  39 . The ventilation plate  39  can have a circular plate structure. A surface of the circular plate structure can be provided with a plurality of spaced ventilation holes. The ventilation holes can be beneficial for the wind of the fan to be blown toward an end of the second concentric terminal  7  away from the first concentric terminal  3 , and thus the purpose of air cooling the second concentric terminal  7  and the lamp holder  35  can be achieved. 
     As shown in  FIGS.  8 - 13   , the fan can include the blade  47 , the third rotating shaft  48 , and the motor  49 . A circumferential outer wall of one end of the third rotating shaft  48  is provided with a plurality of blades  47 . The other end of the third rotating shaft  48  can be connected to the first rotating shaft  42 . A circumferential outer wall of one end of the third rotating shaft  48  close to the first rotating shaft  42  can be provided with the first gear  40 . The first gear  40  can be provided to be engaged with the second gear  41 . A center of the second gear  41  can be connected to the fourth rotating shaft  50 . The fourth rotating shaft  50  can be provided to be perpendicular to the third rotating shaft  48 . An end of the fourth rotating shaft  50  away from the second gear  41  can be connected to a rotating end of the motor  49 . An end of the motor  49  away from the fourth rotating shaft  50  can be fixed on an inner wall of the lamp holder  35 . The first gear  40  and the second gear  41  can be provided as bevel gears that are engaged with each other. The fixed disc  44  with a circular structure can be provided on the inner wall of the lamp holder  35 . The bearing  51  can be provided at a center of the fixed disc  44 . The bearing  51  can be configured to connect the circumferential outer wall of the first rotating shaft  42 . The lamp holder  35  can have an L-shaped structure. One end of the L-shaped structure can be configured for installing the lamp module group  100 , and the other end can be configured for installing on the base  36 . The circumferential outer wall of the first rotating shaft  42  can be provided with the first connecting rod  45 . The connecting rod can be provided at an end of the first rotating shaft  42  away from the third rotating shaft  48 . An end of the first connecting rod  45  away from the first rotating shaft  42  can be provided with the fourth protruding column  43 . The fourth protruding column  43  can be provided on a side of the first connecting rod  45  away from the fixed disc  44 . The third shaft sleeve  46  can be rotatably connected onto the fourth protruding column  43 . The third shaft sleeve  46  can be connected to the third connecting rod  63 . An end of the third connecting rod  63  away from the third shaft sleeve  46  can be provided with the fourth shaft sleeve  56 . The fourth shaft sleeve  56  can be rotatably connected onto the third protruding column  64 . An end of the third protruding column  64  can be provided on one side of a second connecting plate  55 . The other side of the second connecting plate  55  can be fixed on a first connecting plate  54 . A side of the first connecting plate  54  away from the second connecting plate can be provided with the sliding rod  53 . The sliding rod  53  can be slidably provided on the slideway  52 . The slideway  52  can be provided on the inner wall of the lamp holder  35 . An end of the second connecting plate  55  can be connected to the fourth connecting plate  57 . The fourth connecting plate  57  and the third protruding column  64  can be provided on the same surface of the second connecting plate  55 . An end of the fourth connecting plate  57  away from the second connecting plate  55  can be fixed on the first shaft sleeve  58 . The first shaft sleeve  58  can be fixedly provided on the fifth rotating shaft  59 . Both ends of the fifth rotating shaft  59  can be rotatably provided on the inner wall of the lamp holder  35 . The second shaft sleeve  65  can be further fixedly provided on the fifth rotating shaft  59 . A circumferential outer wall of the second shaft sleeve  65  can be provided with the fifth connecting plate  60 . An end of the fifth connecting plate  60  away from the second shaft sleeve  65  can be connected to the second connecting rod  61 . An end of the second connecting rod  61  away from the second shaft sleeve  65  can be fixedly connected to the plunger rod  73 . An end of the plunger rod  73  away from the second connecting rod  61  can be provided with the movable plug  74 . The movable plug  74  can be movably provided in the piston pipe  72 . The other end of the piston pipe  72  can be provided to be in communication with one end of the cooling pipeline  38  close to the water outlet pipe  69 . The first check valve  75  and the second check valve  76  can be provided on the cooling pipeline  38 . The first check valve  75  and the second check valve  76  can be provided on both sides of the piston pipe  72 , respectively. The fifth connecting plate  60  and the fourth connecting plate  57  can be provided on both sides of the fifth rotating shaft  59  along an axial centerline of the fifth rotating shaft  59 , respectively. The first shaft sleeve  58  and the second shaft sleeve  65  can be provided on the circumferential outer wall of the fifth rotating shaft  59  at an interval. The slideway  52  and the motor  49  can each be provided on an inner wall of the same side of the lamp holder  35 . An end of the piston pipe  72  close to the second connecting rod  61  can be provided with a sealing device. The sealing device can be a sealing rubber ring. An outer wall of the sealing device can be fixed to an open inner wall of the piston pipe  72 . A center of the sealing device can be provided with a through hole for the movable plug  74  to move back and forth. 
     The sliding rod  53 , the fourth connecting plate  57 , and the fifth connecting plate  60  each can be provided in parallel to each other. The planes of the fourth connecting plate  57  and the fifth connecting plate  60  can each be provided in parallel to a surface of the fixed disc  44 . The third connecting rod  63  can be located between the fixed disc  44  and the fourth connecting plate  57 , and the third connecting rod  63  can be provided to be inclined with respect to the planes of the fourth connecting plate  57  and the fixed disc  44 . 
     The water injecting port  71  can be configured to add or discharge water into or from the water storage cavity  66 . An open end of the water injecting port  71  can be provided with a sealing plug. When the water needs to be added or discharged, the purpose of adding or discharging the water into or from the water storage cavity  66  can be achieved by removing the sealing plug. 
     The inside of the lamp holder  35  can be air-cooled by using the fan. The water in the water storage cavity  66  can be adsorbed into the cooling pipeline  38  by the water pressure adjusting device, improving the water flow speed of the cooling pipeline  38 , achieving the purpose of accelerating the cooling of the cooling pipeline  38 , and further making the water in the cooling pipeline  38  cool the heat of the lamp holder  35 , the first housing  4  and the second housing  29 . Thus, the service life of the lamp module group  100  can be improved. During operation, the fan can first be started. After the fan is started, the water pressure adjusting device can begin to work. After the water pressure adjusting device is operational, the fan and the water pressure adjusting device can jointly achieve air cooling and water cooling, thereby achieving the purpose of cooling the lamp module group  100 . 
     Its working principle can be as follows: the motor  49  can be connected to a power supply through the wire  9 . When the power supply is started, the motor  49  and the lamp module can be separately started. After the motor  49  is started, the fourth rotating shaft  50  can rotate. After the fourth rotating shaft  50  rotates, the first gear  40  can be driven to rotate. The first gear  40  can rotate and can then engages with the second gear  41  to rotate. The second gear  41  can rotate and can then drive the third rotating shaft  48  and the first rotating shaft  42  to rotate. The third rotating shaft  48  can rotate and can then drive the blade  47  to rotate. The blade  47  can rotate to achieve blowing. The wind of the blade  47  can be blown toward the second housing  29  via the ventilation plate  39 , so that the purpose of air cooling the second housing  29  can be achieved. 
     After the first rotating shaft  42  rotates, the first connecting rod  45  can be driven to rotate. The first connecting rod  45  can rotate, allowing the fourth protruding column  43  on the first connecting rod  45  to make a circular motion around the axial centerline of the first rotating shaft  42 , thereby driving the third connecting rod  63  fixedly provided on the third shaft sleeve  46  to rotate, and then the third connecting rod  63  can make a circular motion along with it. 
     An end of the third connecting rod  63  away from the first connecting rod  45  can be rotatably provided on the third protruding column  64 . The third protruding column  64 , the first connecting plate  54 , and the second connecting plate  55  can each be fixedly connected. The other end of the fourth connecting plate  57  can be fixed to the circumferential outer wall of the fifth rotating shaft  59  through the first shaft sleeve  58 . Both ends of the fifth rotating shaft  59  can be rotatably provided on the inner wall of the lamp holder  35 . Thus, the third connecting rod  63  can allow the first connecting plate  54  and the second connecting plate  55  to swing. The sliding rod  53  can be connected to the first connecting plate  54  and can move back and forth on the slideway  52 , and can drive the fifth rotating shaft  59  to rotate back and forth. The fifth rotating shaft  59  can rotate back and forth, and can then drive the second shaft sleeve  65  and the fifth connecting plate  60  to swing back and forth. The fifth connecting plate  60  can swing, and can then drive the second connecting rod  61  in  FIG.  8    to move left and right. The second connecting rod  61  in  FIG.  9    is shown to move up and down. 
     An end of the second connecting rod  61  away from the fifth connecting plate  60  can be fixedly connected to the plunger rod  73 . The plunger rod  73  can also move back and forth, thereby allowing the movable plug  74  to move back and forth in the piston pipe  72 . When the movable plug  74  moves back and forth in the piston pipe  72 , the air pressure in the piston pipe  72  can change. In  FIG.  12   , when the plunger rod  73  moves to the right, the second check valve  76  can be opened and the first check valve  75  can be closed. The water in the water storage cavity  66  can be introduced into the cooling pipeline  38  between the first check valve  75  and the second check valve  76  via the water outlet  67  and the water outlet pipe  69 , and can fully fill the cooling pipeline  38  located between the first check valve  75  and the second check valve  76 . When the plunger rod  73  moves to the left, the second check valve  76  can be closed and the first check valve  75  can be opened. The water in the cooling pipeline  38  located between the first check valve  75  and the second check valve  76  can be pressurized and can flow from the first check valve  75  to the other end of the cooling pipeline  38 . Repetition can allow the water in the water storage cavity  66  to intermittently flow into the cooling pipeline  38  via one end of the cooling pipeline  38 , and then flow back to the water storage cavity  66  via the other end of the cooling pipeline  38 , thereby achieving the purpose of circulating the water in the cooling pipeline  38 . The cooling efficiency can be accelerated, so that the lamp module can achieve the purpose of accelerated cooling. 
     The various components and assemblies disclosed in  FIGS.  8 - 13    can be omitted from any of the aspects of the lamp module group  100  disclosed herein, specifically including the lamp holder of  FIG.  7   . The aspects disclosed in  FIGS.  8 - 13    are strictly optional and should be viewed as being required by any aspects of the lamp module group  100 , or associated components, disclosed herein. 
       FIG.  14    is a cross-sectional view of another aspect of a concentric electrical connector assembly  1400  in accordance with another aspect of the present disclosure. The concentric electrical connector assembly  1400  can comprise another aspect of the first concentric terminal  3  and the second concentric terminal  7 . In the present aspect, the first concentric terminal  3  can be a male concentric terminal, and the second concentric terminal  7  can be a female concentric terminal. In some aspects, the first concentric terminal  3  can be a female concentric terminal, and the second concentric terminal  7  can be a male concentric terminal. 
     Each concentric terminal  3 , 7  can define an inner connection end  1402  and an outer connection end  1404 . Each concentric terminal  3 , 7  can comprise a magnet  1410 , an outer conductive sleeve  1412 , an insulating sleeve  1414 , an inner conductive sleeve  1416 , and an insulative ring  1418 . In the present aspect, the outer conductive sleeves  1412  can extend from the inner connection end  1402  to the outer connection end  1404 . The outer conductive sleeves  1412  can each define a contact flange  1426  at the inner connection end  1402  of each concentric terminal  3 , 7 . The outer conductive sleeve  1412  and the inner conductive sleeve  1416  of each concentric terminal  3 , 7  can be coupled to a wire  9  at the outer connection end  1404 . In some aspects, the conductive sleeves  1412 , 1416  can comprise a conductive material, such as metal for example and without limitation. 
     The inner conductive sleeve  1416  can be positioned at the center of each respective concentric terminal  3 , 7 . The insulating sleeves  1414 , the outer conductive sleeves  1412 , the magnets  1410 , and/or the insulative rings  1418  can define an at least partially annular or tubular shape, for example and without limitation. Each inner conductive sleeve  1416  can be at least partially surrounded by the respective insulating sleeve  1414 . Each insulating sleeve  1414  can be at least partially surrounded by the respective outer conductive sleeve  1412 . The insulating sleeves  1414  can electrically isolate the inner conductive sleeves  1416  from the outer conductive sleeves  1412 . The outer conductive sleeves  1412  can be at least partially surrounded by the magnets  1410  and the insulative rings  1418 . The magnets  1410  can be captured, or secured, on the outer conductive sleeves  1412  between the respective insulative rings  1418  and the contact flanges  1426 . 
     Each inner conductive sleeve  1416  can define an inner sleeve cavity  1420 . The inner sleeve cavities  1420  can extend into the respective inner conductive sleeves  1416  from the inner connection ends  1402  towards the outer connection ends  1404 . In the present aspect, the inner sleeve cavity  1420  of the first concentric terminal  3  can be a bore extending into the inner conductive sleeve  1416  to a conductive base  1428  of the inner conductive sleeve  1416 . A spring  1422  can be positioned within the inner sleeve cavity  1420  between the conductive base  1428  and a conductive pin  1424 . In the present aspect, the spring  1422  can be a coil spring. The conductive pin  1424  can be captured at the inner connection end  1402  of the first concentric terminal  3 , and the conductive pin  1424  can be configured to telescope, or slide, within the inner sleeve cavity  1420 , which can compress the spring  1422 . 
     In the present aspect, the inner sleeve cavity  1420  of the second concentric terminal  7  can be a shallow depression, such as a dimple, for example and without limitation. In some aspects, the inner sleeve cavity  1420  can extend further into the inner conductive sleeve  1416  of the second concentric terminal  7 , such as to define a bore for example and without limitation. The inner sleeve cavity  1420  can be sized to receive the conductive pin  1424 . 
     The poles of the magnets  1410  can be oriented so that the inner connection end  1402  of the first concentric terminal  3  attracts the inner connection end  1402  of the second concentric terminal  7 , and vice versa. The magnets  1410  can draw the inner connection ends  1402  together to place the contact flanges  1426  of the outer conductive sleeves  1412  in facing engagement and in electrical communication, thereby establishing a first electrically conductive pathway through the outer conductive sleeves  1412  and the wires  9  attached thereto. 
     As the inner connection ends  1402  are drawn together, the conductive pin  1424  can engage the inner sleeve cavity  1420  of the inner conductive sleeve  1416  of the second concentric terminal  7 , and the conductive pin  1424  can be depressed into the inner sleeve cavity  1420  of the inner conductive sleeve  1416  of the first concentric terminal  3 , thereby compressing the spring  1422 . The spring  1422  can exert a biasing force on the conductive pin  1424 , which can ensure positive contact between the conductive pin  1424  and the inner conductive sleeve  1416  of the second concentric terminal  7 , thereby establishing electrical communication between the conductive pin  1424  and the inner conductive sleeve  1416  of the second concentric terminal  7 . The conductive pin  1424  can maintain electrical communication with the inner conductive sleeve  1416  of the first concentric terminal  3  through both direct contact with the inner conductive sleeve  1416  and through indirect contact through the spring  1422 , which can be electrically conductive. Accordingly, a second electrically conductive pathway can be established through the inner conductive sleeves  1416  and the wires  9  attached thereto. 
     The concentric electrical connector assembly  1400  can be rotatable, in that the concentric terminals  3 , 7  can be rotated relative to one another without disrupting the first electrically conductive pathway or the second electrically conductive pathway. 
     The concentric electrical connector assembly  1400  can be utilized in place of the concentric terminals  3 , 7  shown throughout the other drawings, such as to provide power to the lamp module group  100 . For example and without limitation, the concentric terminals  3 , 7  of the present aspect of the concentric electrical connector assembly  1400  can be integrated with the shaft  6  of the first housing  4  (the shaft  6  of the first housing  4  shown in  FIG.  1   ) and the second housing  29  (shown in  FIG.  5   ). In such aspects, when the second housing  29  is threadedly engaged with the shaft  6  of the first housing  4 , an electrical connection can be made between the concentric terminals  3 , 7  of the present aspect of the concentric electrical connector assembly  1400  to provide power to the lamp module group  100 . The concentric electrical connector assembly  1400  can be compatible with any of the various aspects of electrical module groups of the present disclosure, including both the lamp module group  100  and the speaker module group  3100 . 
       FIG.  15    is a cross-sectional view of another aspect of the lamp module  101  of the lamp module group  100  in accordance with another aspect of the present disclosure.  FIG.  16    is an exploded view of the lamp module  101  of the lamp module group  100  of  FIG.  15   . As shown in  FIGS.  15  and  16   , the lamp module group  100  can comprise the LED lamp board  1 , the power supply driving module  2 , the first concentric terminal  3 , the first housing  4 , the lens  14 , a first retention insert  1512 , and a second retention insert  1516 . In the present aspect, the LED lamp board  1  can be connected in electrical communication with the power supply driving module  2  by wires  9 . The first concentric terminal  3  can be directly mounted to the power supply driving module  2 , as shown, or connected by wires (not shown). The lens  14  can define at least one indexing post  1514 , which can be received by the LED lamp board  1  to positively index and position the lens  14  relative to the LED lamp board  1 . 
     The first housing  4  can define a housing cavity  1504 . The housing cavity  1504  can comprise a lower bore  1506  extending through the shaft  6 , a main compartment  1508 , and an upper bore  1510 . The terms “upper” and “lower” are used with respect to the present viewing orientation and should not be viewed as limiting; for example and without limitation, the lamp module  101  can be used in any orientation. The inner rib  5  can extend radially inward into the housing cavity  1504  between the upper bore  1510  and the main compartment  1508 . The upper bore  1510  can define internal threading  1511 . The LED lamp board  1  can be supported within the upper bore  1510  atop the inner rib  5 . The first retention insert  1512  can be a threaded insert, which can threadedly engage the internal threading  1511 . The first retention insert  1512  can be screwed into the upper bore  1510  to secure the LED lamp board  1  to the inner rib  5 . In some aspects, the first retention insert  1512  can engage with a lens flange  1615  (shown in  FIG.  16   ) of the lens  14  to secure the lens  14  to the LED lamp board  1 . In some aspects, the lens  14 , itself, and/or the lens  14  and first retention insert  1512  can form a seal around an LED  1501  and the wire  9 , such as to protect them from exposure to moisture, dust, or other elements. In some aspect, the seal can be formed with a glue, caulk, epoxy, or other suitable material. The lamp module  101  can be waterproof. For example, in the present aspect, the lamp module  101  can be IP68 rated, or better, under IEC standard 60529. 
     The shaft  6  can define a shaft inner rib  1505  extending into the lower bore  1506 . The second retention insert  1516  can comprise one or more hooks  1517 . The hooks  1517  can be sized to snap over the shaft inner rib  1505 , thereby retaining the second retention insert  1516  within the lower bore  1506 . The second retention insert  1516  can engage with the first concentric terminal  3  to secure the first concentric terminal  3  within the shaft  6 . In some aspects, the second retention insert  1516  can also provide a seal within the lower bore  1506 , which can prevent, water, dust, dirt, or other elements from reaching the main compartment  1508  through the lower bore  1506 . In the present aspect, the main compartment  1508  can be filled with a potting, glue, or other filler  1502 . Potting can be used to protect the power supply driving module  2  from exposure to moisture, and to electrically isolate the electronics from the first housing  4 . Certain glues can be used for the same purpose, as well as to shunt heat away from the LED lamp board  1  and the power supply driving module  2  to the first housing  4 . Such glues can comprise additives configured to enhance thermal conductivity. The first housing  4  can comprise a thermally conductive material, such as a metal for example and without limitation. The first housing  4  can act as a heat sink and aid in dissipation of heat, which can lower the operating temperatures of the lamp module group  100  and extend the service life of the electronics therein. 
       FIGS.  17  and  18    show another aspect of the lamp module  101  of the lamp module group  100  in accordance with another aspect of the present disclosure, wherein the lamp module  101  shown in  FIG.  17    can be manually dimmable, and wherein the lamp module  101  shown in  FIG.  18    can be electronically dimmable.  FIG.  19    is a cross-sectional view of the lamp module group  100  of  FIG.  18   . 
     As  FIGS.  17 - 19    demonstrate, the lamp module group  100  can comprise the LED lamp board  1 , the power supply driving module  2 , the first concentric terminal  3 , and the first housing  4 . In some aspects, the lamp module group  100  can further comprise one or more fasteners  8 , wires  9 , and one or more lenses  14 . Particularly, the lamp module group  100  of the present aspect can utilize interchangeable lenses  14 , which can be interchanged, or swapped out, from the lamp module group  100  to change a beam spread angle for the lamp module group  100 , as described in greater detail below with respect to  FIG.  20   . The lens  14  is shown in a lens holder  1714 . As also discussed below in greater detail with respect to  FIG.  20   , the lens holder  1714  can engage with a mounting bracket  1730  of the lamp module group  100  to secure the lens  14  in place. The gasket  32  can be positioned atop the mounting bracket  1730 , and the sealing lens  33  can be placed over the gasket  32 . The first housing  4  can define housing threads  1704  at an outer end opposite from the shaft  6 . The cover  34  can be screwed onto the housing threads  1704 , which can compress the gasket  32  between the sealing lens  33 , the mounting bracket  1730 , and the first housing  4 , thereby forming a seal therebetween. With the cover  34 , the sealing lens  33 , and the gasket  32  mounted to the first housing  4 , the lamp module group  101  of the present aspect can be waterproof, such as being IP68 rated, or better, under IEC standard 60529. 
     The lamp module group  100  can be modular, and various accessories and different aspects of the disclosed components can be utilized to configure the lamp module group  100  for different intended uses. For example and without limitation, different aspects of the cover  34  are disclosed between  FIGS.  17  and  18   , which can be used or adapted for use with the lamp module group  100  of the present aspect, or other aspects of the lamp module group  100  disclosed herein. In some aspects, the cover  34  can be configured to alter qualities of the light emitted from the lamp module group  100 . For example and without limitation, the cover  34  can be configured to direct, scatter, dim, diffuse, or otherwise alter light emitted from the lamp module group  100 . 
     The lamp module group  100  can also optionally comprise various accessories configured to alter qualities of the light emitted from the lamp module group  100 . For example, one or more accessory lenses  1715  can be placed between the lens  14  and the sealing lens  33 . The lens holder  1714  can be configured to support the accessory lens  1715 , and tightening the cover  34  to the first housing  4  can secure the accessory lens  1715  in place. A variety of accessory lenses  1715  are contemplated, which can, for example and without limitation, alter the color and/or intensity of the light. For example, in some aspects, the accessory lens  1715  can comprise a frosted translucent material configured to dim the light emitted by the lamp module group  100 . In some aspects, the accessory lens  1715  can be colored or otherwise tinted to change the color of the light emitted. In some aspects, the accessory lens  1715  can be configured to both dim the light and change its color. In some aspects, multiple accessory lenses  1715  can be utilized together to provide multiple effects. In some aspects, the sealing lens  33  can be configured to alter the light emitted from the lamp module group  100 , such as to tint, dim, or scatter the light for example and without limitation. 
     In some aspects, a diffuser  1716  can be positioned between the lens  14  and the sealing lens  33 . The diffuser  1716  can be configured to scatter light emitted from the lamp module group  100 . The diffuser  1716  can be omitted or utilized alone or in conjunction with one or more accessory lenses  1715 . 
     In the present aspect, the lamp module group  100  can further comprise a mounting plate  1720 . The LED lamp board  1  can be mounted to the mounting plate  1720  (LED lamp board  1  shown mounted to the mounting plate  1720  in  FIG.  19   ). The mounting bracket  1730  can fit over the LED lamp board  1  so that the LED lamp board  1  is at least partially positioned between, or sandwiched between, the mounting bracket  1730  and the mounting plate  1720 . In some aspects, some of the fasteners  8  can extend through the mounting plate  1720  and the mounting bracket  1730  and thread into the first housing  4  to secure the mounting bracket  1730  to the mounting plate  1720 . In some aspects, these fasteners can be screws or bolts. Some of the fasteners  8  can cooperate with one or more nuts  1708  and one or more standoffs  1710  to secure together the LED lamp board  1 , the mounting plate  1720 , the LED lamp board  1 , and the mounting bracket  1730 . In some aspects, these fasteners  8  can extend through the standoffs  1710  and threadedly engage with the nuts  1708 . In such aspects, the standoffs  1710  can or may not threadedly engage with the fasteners  8 . In some aspects, these fasteners  8  can threadedly engage with the standoffs  1710 . In some aspects, the standoffs  1710  can define a male threaded portion that can threadedly engage with the nuts  1708 . 
     The standoffs  1710  can be positioned between the mounting plate  1720  and the power supply driving module  2 , and when secured together, the power supply driving module  2  can be spaced apart from the mounting plate  1720 . Spacing the power supply driving module  2  apart from the mounting plate  1720 , and the LED lamp board  1  attached thereto, can protect the power supply driving module  2  from heat generated by the LED lamp board  1 . In some aspects, the mounting plate  1720  can comprise a thermally conductive material, such as a metal for example and without limitation, which can conduct heat generated by the LED lamp board  1  to the first housing  4 . The first housing  4  can act as a heat sink and aid in the dissipation of heat generated by the LED lamp board  1 . In some aspects, the mounting plate  1720  can comprise a plastic material. In such aspects, the plastic can have a plastic flammability rating under Underwriters Laboratories standard UL 94, such as HB, V-2, V-1, V-0, 5VB, or 5VA, for example and without limitation. 
     As shown in  FIGS.  18  and  19   , the second concentric terminal  7  can be comprised by a power cable  1810 , which can comprise two or more separate wires  9  coupled together to form the power cable  1810 . The second concentric terminal  7  can be connected in electrical communication with the wires  9  of the cable  1810 . The second housing  29  can fit over the power cable  1810 . The second housing  29  can be at least partially shaped as a hexagonal nut, which can be threadedly engaged with the shaft  6  to secure the power cable  1810  to the first housing  4 , thereby forming an electrical connection between the first concentric terminal  3  and the second concentric terminal  7 . The sealing ring  30  can be placed between the first housing  4  and the second housing  29 . Tightening the second housing  29  onto the shaft  6  can compress and energize the sealing ring  30 , thereby forming a seal between the first housing  4  and the second housing  29 . The seal can be a waterproof seal that can prevent water, as well as dust, dirt, and other elements, from entering the first housing  4  through the shaft  6 . The first concentric terminal  3  can be electrically connected to the power supply driving module  2  by wires  9 , which in turn can be electrically connect to the LED lamp board  1  by other wires  9  (shown in  FIG.  18   ). 
     The lamp module groups  100  of the aspects of  FIGS.  17  and  18    can be dimmable. In each aspect, the power supply driving module  2  can comprise a dimmer  1750 , which can comprise one or more electrical components. The dimmer  1750  can be adjusted to vary the light output of the LED lamp board  1 , such as to cause the LED lamp board  1  to emit more or less light. 
     The aspect of  FIG.  17    can be manually dimmable, and the dimmer  1750  can be a manual dimmer  1752 , such as a potentiometer, rheostat, switch and resistor bank, digital potentiometer, integrated circuit chip, or other suitable component or combination of components. In the present aspect, the manual dimmer  1752  can comprise a control  1754 . In the present aspect, the control  1754  can be a two-piece control  1754  with an upper control  1756  and a lower control  1758 . In the present aspect, the lower control  1758  can extend between the power supply driving module  2  and the mounting plate  1720 . The mounting plate  1720  and mounting bracket  1730  can define an opening, and the lower control  1758  and the upper control  1756  can be engaged with one another through the opening. In some aspects, a control seal  1760  can be positioned to seal the opening. In some aspects, the control seal  1760  can be positioned between the upper control  1756  and the lower control  1758 . The upper control  1756  can be positioned to be accessible by removing the cover  34  and sealing lens  33 . For example and without limitation, the upper control  1756  can be positioned above the mounting plate  1720  and the mounting bracket  1730 . In some aspects, the control  1754  can be accessible through the opening, such as with a screwdriver or other tool for example and without limitation. In some aspects, the control  1754  can penetrate the first housing  4 . 
     The control  1754  can manually actuate the manual dimmer  1752 . In the present aspect, the control  1754  can be rotated to adjust the manual dimmer  1752 . In some aspects, the control  1754  can be a button or engage with a button of the manual dimmer  1752 , such as a momentary switch for example and without limitation, and the control  1754  can be depressed to toggle through various dimming settings, such as based on the number of button presses or how long the button is depressed. In some aspects, the control  1754  can adjust through a different method, such as by sliding the control  1754  along a path. 
     Turning to  FIGS.  18  and  19   , the lamp module group  100  can be electronically dimmable, and the dimmer  1750  can be a wireless dimmer  1852 , such as a digital potentiometer, an integrated circuit chip, or other suitable component or combination of components. The wireless dimmer  1852  can be electrically connected to an antenna  1854  by a wire  9 . The antenna  1854  can be configured to wirelessly receive signals, such as through Bluetooth, cellular frequency, WiFi, radio, infrared, or any other suitable type of wireless communication signal. The antenna  1854  can receive these signals, which can encode commands for the wireless dimmer  1852 , and the wire  9  can communicate the signals to the wireless dimmer  1852 . The wireless dimmer  1852  can respond to commands encoded within the signal to vary the output of the LED lamp board  1 . The antenna  1854  can be positioned above or at least partially exposed through the mounting bracket  1730 . In some aspects, the antenna  1854  can penetrate the first housing  4 . 
     As further shown in  FIG.  19   , the mounting plate  1720  can rest on the inner rib  5 . In some aspects, one or more of the fasteners  8 , such as screws for example and without limitation, can thread into the inner rib  5  to secure the mounting plate  1720  to the first housing  4 . The main compartment  1508  of the housing cavity  1504  can be filled with potting, glue, or other filler  1502 , and the main compartment  1508  can be waterproof. The mounting plate  1720  and the inner rib  5  can form a wall between the main compartment  1508  and the upper bore  1510  of the housing cavity  1504 . 
     As shown, the lens  14  can be mounted within the lens holder  1714 .  FIG.  20    is a perspective view of the lamp module group  100  of  FIG.  18    in a partially disassembled state. As referenced above, the lenses  14  can be interchanged, such as to change a beam angle of the lamp module group  100 . Each lens  14  can define an outer end  2014  and an inner end  2016 . The inner end  2016  can define an opening  2018 , which can be positioned over the LED  1501  when the lens  14  and lens holder  1714  are mounted to the mounting bracket  1730 . With the opening  2018  placed over the LED  1501 , the lens  14  can fully gather the light emitted by the LED  1501 . 
     The outer end  2014  of the lens  14  can define a lens flange  2020  and one or more mounting tabs  2022 . The lens holder  1714  can define an outer end  2002  and an inner end  2004 . The lens holder  1714  can define one or more mounting catches  2003  at the outer end  2002 . The lens flange  2020  can be sized so that the lens flange  2020  can rest on the outer end  2002  of the lens holder  1714  when the inner end  2016  of the lens  14  is inserted into the lens holder  1714  and the lens  14  is mounted to the lens holder  1714 . When the lens  14  is mounted to the lens holder  1714 , the mounting catch  2003  can slip over the mounting tab  2022  to secure the lens  14  to the lens holder  1714 . 
     The LED  1501  of the LED lamp board  1  can be exposed through a center opening  2030  of the mounting bracket  1730 . The mounting bracket  1730  can define a pair of locking slots  2032  and a pair of locking depressions  2034 . The inner end  204  can define a pair of locking legs  2006  and a pair of locking tabs  2008 . To lock the lens holder  1714  to the mounting bracket  1730 , the locking legs  2006  can be inserted through the locking slots  2032 , and the lens holder  1714  can be twisted relative to the mounting bracket  1730  to a locked position of the lens holder  1714 . The locking slots  2032  and the locking legs  2006  can be shaped so that once the lens holder  1714  is placed in the locked position, the locking legs  2006  cannot be withdrawn through the locking slots  2032 , thereby securing the lens holder  1714  to the mounting bracket  1730 . In the locked position, the locking tabs  2008  of the lens holder  1714  can engage the locking depressions  2034  of the mounting bracket  1730 . Engagement between the locking depressions  2034  and the locking tabs  2008  can bias the lens holder  1714  to remain in the locked position, thereby resisting rotation of the lens holder  1714  back towards an unlocked position wherein the lens holder  1714  can be removed from the mounting bracket  1730  by disengaging the locking legs  2006  from the locking slots  2032 . 
     In practice, the lens  14  can be changed out by rotating the lens holder  1714  to the unlocked position so that the lens  14  and lens holder  1714  can be removed from the mounting bracket  1730 . The mounting catches  2003  can then be disengaged from the mounting tabs  2022 , such as by prying the mounting catches  2003  over the mounting tabs  2022 . The lens  14  can then be removed from the lens holder  1714 . A different lens  14  can then be inserted into the lens holder  1714  and secured by engaging the mounting catches  2003  with the mounting tabs  2022 . The lens holder  1714 , with the lens  14  mounted therein, can then be secured to the mounting bracket  1730  by inserting the locking legs  2006  back into the locking slots  2032 , and then rotating the lens holder  1714  from the unlocked position to the locked position. In some aspects, the lens  14  can be mounted in the lens holder  1714  while the lens holder  1714  is secured to the mounting bracket  1730 . 
       FIGS.  21 A-C  demonstrate another configuration of the lamp module group  100  of  FIG.  1   , which can further comprise a bollard post  2100 , another aspect of the cover  34 , and a shroud  2134  in accordance with further aspects of the present disclosure. 
     As shown in  FIG.  21 A , the lamp module group  100  can comprise one or more O-rings  2140  extending circumferentially around the first housing  4  of the lamp module  101 . The first housing  4  can define housing threading  2104  opposite from the shaft  6 . The shaft  6  can define shaft threading  2106 . 
     The bollard post  2100  can comprise an accessory housing  2154 . The accessory housing  2154  can comprise a main tube  2156 , a top threaded insert  2158  defining a threaded bore  2160 , and a bottom threaded insert  2162  defining an accessory shaft  2164 . The terms “top” and “bottom” are used with respect to the present viewing angle and should not be viewed as limiting; for example and without limitation, the bollard post  2100  can be utilized in any orientation. The bollard post  2100  can comprise a first concentric accessory terminal  2170  and a second concentric accessory terminal  2172 . The first concentric accessory terminal  2170  can be received by the threaded bore  2160  of the top threaded insert  2158  to form a power receptacle  2161 . The first concentric accessory terminal  2170  can be connected in electrical communication with the second concentric accessory terminal  2172  by a plurality of accessory wires  2179 , which in turn can be connected together by electrical connectors  2174 , such as wire nuts for example and without limitation. The first concentric accessory terminal  2170  can be secured within the threaded bore  2160 . The first concentric accessory terminal  2170  can be a female concentric terminal. The shaft  6  can be screwed into the threaded bore  2160  to electrically connect the first concentric terminal  3  with the first concentric accessory terminal  2170 . The second concentric accessory terminal  2172  can be secured within the accessory shaft  2164 . The second concentric accessory terminal  2172  can be a male concentric terminal. 
     The accessory shaft  2164  and the second concentric accessory terminal  2172  can be coupled to a power cable  1810  or a fixed power outlet (not shown) to transmit power through the bollard post  2100  to the lamp module  101 . In some aspects, one or more bollard posts  2100  can be coupled to a base comprising a wall cord (not shown), such as to form a lamp. For example, a single bollard post  2100  could be utilized for a desk lamp or other application wherein a shorter height might be desired. Multiple bollard posts  2100  can be coupled together for applications wherein a taller lamp might be desired, such as for a floor lamp. In some aspects, the bollard posts  2100  can define a shape other than being straight. For example and without limitation, the main tube  2156  can be curved to form an elbow, such as a 90-degree or 45-degree elbow for example and without limitation. In some aspects, the main tube  2156  can branch or otherwise diverge, and the bollard post  2100  can be configured to couple to multiple lamp modules  101 . For example and without limitation, the main tube can define a tee-shape or wye-shape with separate lamp modules  101  connected to two of the ends. 
     In the aspect shown, the cover  34  can comprise a base  2128  and a translucent element  2130 . In the aspect shown, the translucent element  2130  can be screwed, or threaded, into the base  2128 , and a cover gasket  2126  can be positioned between the base  2128  and the translucent element  2130  to form a seal therebetween. The base  2128  can be configured to threadedly engage the housing threads  2104  to mount the cover  34  to the lamp module  101 . In the present aspect, the translucent element  2130  can comprise a frosted glass column configured to dim and diffuse light emitted from the lamp module  101 . 
       FIG.  21 B  shows the cover  34 , the lamp module  101 , and the bollard post  2100  screwed together to assume the configuration of a bollard  2199  for the lamp module group  100 . With the cover  34  and the bollard post  2100  secured to the lamp module  101 , the O-rings  2140  can remain exposed. The O-rings  2140  can be configured to frictionally engage and retain another accessory, such as the shroud  2134 . 
       FIG.  21 C  shows the bollard  2199  with the shroud  2134  installed. The shroud  2134  can slide over the cover  34  and the lamp module  101  (shown in  FIG.  21 B ) to contact the bollard post  2100 , thereby fully concealing the lamp module  101 . The O-rings  2140  (shown in  FIG.  21 B ) can frictionally retain the shroud  2134  on the lamp module  101 . The shroud  2134  can be configured to reduce or direct light emitting through the translucent element  2130  of the cover  34 . The shroud  2134  can be opaque, and the shroud  2134  can define one or more openings  2135  through which light from the translucent element  2130  can pass. The positioning of the openings  2135  can direct light from the bollard  2199 , and the size of the openings  2135  can control the amount of light emitting therefrom. In some aspects, the openings  2135  may also have a complex shape, such as a grid pattern (not shown), which can diffuse and/or dim the light emitted through the shroud  2134 . 
       FIGS.  22 A-J  demonstrate various aspects of the cover  34  of the lamp module group  100  for use with the lamp module  101 . The aspects of the cover  34  that are shown can be configured for use as flush-mount lighting applications, such as path lights for example and without limitation. As shown in each of  FIGS.  22 A-J , but only labelled in  FIG.  22 A  for clarity, the covers  34  can be mounted to the lamp module  101  of the lamp module group  100 , and the lamp module  101  can be coupled to a power source, such as the power cable  1810 , for example and without limitation. In some applications, the lamp module  101  and the power cable  1810  can be buried or otherwise set into a ground surface, such as concrete for example and without limitation, where only the cover  34  is exposed. In some applications, the lamp module group  100  can be set into a hole, such as in a countertop, cabinet, shelving display, or other structure, and the O-rings  2140  can frictionally retain the lamp module group  100  in the hole with only the cover  34  exposed. 
     The covers  34  can be configured to direct light in various directions via one or more openings  2135 . The covers  34  of  FIGS.  22 A,  22 D,  22 E,  22 I, and  22 J  can each define a top opening  2235 . The top openings  2235  can direct light at least partially upwards from the covers  34 . The covers  34  of  FIGS.  22 D,  22 I, and  22 J  can each comprise a lip  2240  that can redirect or otherwise limit the angle of light emitted from the openings  2135 . The covers  34  of  FIGS.  22 B,  22 C,  22 F,  22 G, and  22 H  can each define one or more side openings  2245 , which can direct light in various directions from the respective covers  34 . The covers  34  can define various shapes, such as circular and square as shown, or other suitable shapes, such as oval, various polygonal shapes, or other irregular shapes. 
       FIGS.  23 A-D  show various aspects of the lamp module group  100  in accordance with additional aspects of the present disclosure wherein the lamp module group  100  is configured as a pendant light. In each of the aspects shown, the lamp module group  100  can comprise the cover  34 , the gasket  32 , the lamp module  101 , sealing ring  30 , the power cable  1810 , and the second housing  29 . The covers  34  of  FIGS.  23 A ,B can be open on the end opposite from the first housing  4 , whereas the covers  34  of  FIGS.  23 C ,D can be closed on the end opposite from the first housing  4 . The lamp module groups  100  of  FIGS.  23 A ,B can comprise the sealing lens  33  to cooperate with the gasket  32  and the covers  34  to seal the first housing  4  of the light module  101 . As demonstrated by the cover  34  in  FIG.  23 A , the cover  34  can define an inner rib  2333 , which can engage with the sealing lens  33  so that when the cover  34  is tightened onto the first housing  4 , the gasket  32  can be compressed between the sealing lens  33  and the first housing  4 , thereby forming a seal. For the aspects of the lamp module groups  100  of  FIGS.  23 C ,D, the gasket  32  can be compressed between the cover  34  and the first housing  4  to form a seal. 
     In the aspects shown, the second housing  29  can be a hanging housing, such as a looped hanging housing  2329  (shown in  FIGS.  23 A ,C,D) or a sleeved hanging housing  2350  (shown in  FIG.  23 B ). Each of the hanging housings  2329 , 2350  can receive the power cable  1810  and engage with the second concentric terminal  7  of the power cable  1810 . Specifically, each hanging housing  2329 , 2350  can engage with the first limiting boss  24  of the second concentric terminal  7  so that the power cable  1810  cannot be withdrawn through the hanging housing  2329 , 2350 . The looped hanging housing  2329  can define a loop  2330 , which the power cable  1810  can extend through. In some aspects, the loop  2330  can provide stress relief for the power cable  1810 , such as to reduce the load on the second concentric terminal  7  from the weight of the lamp module  101 . 
     The hanging housings  2329 , 2350  can threadedly engage with the shaft  6  of the first housing  4 , with the sealing ring  30  positioned therebetween. Compression of the sealing ring  30  when the hanging housings  2329 , 2350  are tightened to the shaft  6  can create a seal between the hanging housings  2329 , 2350  and the shaft  6  of the first housing  4 . The sleeved hanging housing  2350  (shown in  FIG.  23 B ) can comprise an extended sleeve  2351 , which can fit down over the first housing  4  when the sleeved hanging housing  2350  is screwed onto the shaft  6 . 
     As shown in  FIG.  23 D , in some aspects, the lamp module group  100  can further comprise another aspect of the shroud  2134 , which can be a top shroud. In the aspect shown, rather than fitting over the cover  34 , the shroud  2134  can fit over the lamp module  101 . Specifically, the shroud  2134  can define a top opening  2335 , which can fit over the shaft  6  of the first housing  4 . When the second housing  29  is threaded onto the shaft  6 , the shroud  2134  can be captured between the first housing  4  and the second housing  29 . As shown in the assembled configuration on the right, the shroud  2134  can extend downwards over the first housing  4  and at least a portion of the cover  34 . 
     Continuing with  FIG.  23 D , the cover  34  can comprise the base  2128  and the translucent element  2130 . The translucent element  2130  can be a hollow glass cylinder. In the aspect shown, the translucent element  2130  can be configured to dim and/or diffuse light passing through it. For example, the translucent element  2130  can comprise a frosted material, such as frosted glass or plastic. In the present aspect, the cover  34  can further comprise an end cap  2334  on the translucent element  2130  opposite from the base  2128 . In some aspects, the end cap  2334  can be configured to alter an aspect of the light, such as to tint or dim the light directed directly downwards through the translucent element  2130 . In some aspects, the end cap  2334  can be reflective, and light traveling downwards through the translucent element  2130  can be reflected upwards towards the shroud  2134 , where it can then be reflected back downwards again to diffuse the light and provide a softer effect to the light that is cast downwards from the lamp module group  100 . In the aspect shown, the base  2128  can be a sleeved base with an extended sleeve  2328  (also shown in  FIG.  23 C ), which can be configured to slide over the first housing  4  when the cover  34  is threaded onto the first housing  4 , as demonstrated in the assembled configuration of the lamp module group  100  on the right side of  FIG.  23 C . 
     Remaining on  FIG.  23 C , in some aspects, the cover  34  can comprise a cover gasket  2126  positioned between the base  2128  and the translucent element  2130 . The translucent element  2130  can thread into the base  2128 , and the cover gasket  2126  can be compressed and form a seal between the translucent element  2130  and the base  2128 . In the aspect shown, the translucent element  2130  can be a solid rod, such as a rod formed from, glass or a polymer. In some aspects, the translucent element  2130  can be clear and uniform. In some aspects, additives or imperfections  2331  can be distributed through the translucent element  2130  for visual effect. For example and without limitation, the additives or imperfections  2331  can be foreign materials, such as glitter, reflective or colored particles, or discrete objects, or voids, such as entrapped bubbles, intentionally induced cracks, or other interstices in the material. As an example of a discrete object, a symbolic or written logo, trademark, mascot, or other likeness can be cast into the translucent element  2130 . 
       FIGS.  24 A-D  show various aspects of the lamp module group  100  in accordance with additional aspects of the present disclosure wherein the lamp module group  100  is configured as a spotlight. The aspect of  FIG.  24 D  can be similar to the aspect of  FIG.  7   ; however, the aspects of the lamp module group  100  of  FIG.  24 D  can omit the assemblies and components disclosed in the aspects of  FIGS.  8 - 13   , such as the fan and water cooling system for example and without limitation. 
     The lamp module groups  100  of  FIGS.  24 A-C  can be substantially the same, except that  FIG.  24 C  discloses a different aspect of the cover  34 , or shroud  2134 , than that of  FIGS.  24 A ,B. The cover  34 , or shroud  2134 , can be substantially cylindrical in the aspects of  FIGS.  24 A ,B. The cover  34 , or shroud  2134 , can be substantially rectangular and offer a wider emitting angle for the lamp module group  100  compared to the cylindrical aspect. In the aspects shown in  FIGS.  24 A-C , the structure can be utilized as the cover  34 . As shown in  FIGS.  24 A ,B, the translucent element  2130  can be round. As shown in  FIG.  24 C , the translucent element  2130  can be rectangular. As shown in  FIGS.  24 A ,C, the cover  34  can slip over the first housing  4  of the lamp module  101 . Rather than being threaded on, the cover  34  can frictionally engage the O-rings  2140  to secure the cover  34  to the first housing  4  of the lamp module  101 . Because the housing threads  1704  are not engaged, in some aspects, a separate cover (not shown) can be threaded onto the housing threads  1704 , and the disclosed structure can act as a shroud  2134  positioned over the cover  34 . As shown in  FIG.  24 A , the cover  34 , or shroud  2134 , can comprise the base  2128 , the translucent element  2130 , and the cover gasket  2126  therebetween. 
     Turning to  FIGS.  24 A ,C, the second housing  29  can be the lamp holder  35 . The lamp holder  35  can receive the top threaded insert  2158 , which can in turn receive the first concentric accessory terminal  2170  in the threaded bore  2160  to from the power receptacle  2161  (the threaded bore  2160  and the power receptacle  2161  shown in  FIG.  24 A ). The top threaded insert  2158  can be secured to the lamp holder  35  by the fasteners  8 . The lamp module  101  can be screwed into the power receptacle  2161  to electrically connect the lamp module  101  to the first concentric accessory terminal  2170  and the power cable  1810  (shown in  FIG.  24 A ) connected thereto. The power cable  1810  can extend through the lamp holder  35  and the shaft  6  connected thereto. The power cable  1810  can extend through a cable insert  2416 , and the cable insert  2416  can be inserted into the shaft  6  where the power cable  1810  exits the shaft  6 . The cable insert  2416  can provide a seal and prevent abrasion to the power cable  1810  from rubbing against the shaft  6 . 
     The shaft  6  can be a tiltable shaft  2406 , which can be adjusted for angle relative to the lamp holder  35 . As shown in  FIG.  24 C , the tiltable shaft  2406  can define a fixing hole  2410 , which can receive the fixing rod  37 . A fixing nut  2437  can be threaded onto the fixing rod  37 . The fixing nut  2437  can be loosened to allow the tiltable shaft  2406  to tilt, or pivot, relative to the lamp holder  35 . The fixing nut  2437  can be tightened to fix the tiltable shaft  2406  relative to the lamp holder  35 . 
     Turning to  FIG.  24 D , the lamp module group  100  can comprise the cover  34 , the sealing lens  33 , the gasket  32 , the lamp module  101 , the sealing ring  30 , fasteners  8 , the top threaded insert  2158 , the first concentric accessory terminal  2170 , the power cable  1810 , the lamp holder  35 , the fixing rod  37 , the fixing nut  2437 , and the base  36 . The power receptacle  2161  can comprise the top threaded insert  2158  and the first concentric accessory terminal  2170 , and in the present aspect, the power receptacle  2161  can further comprise a receptacle clamp  2461 . The receptacle clamp  2461  can couple the first concentric accessory terminal  2170  to the top threaded insert  2158 , such as by engaging the first concentric accessory terminal  2170  or the power cable  1810  attached thereto. The receptacle clamp  2461  can be fastened to the top threaded insert  2158  by fasteners  8 , and tightening the fasteners  8  with the first concentric accessory terminal  2170  or the power cable  1810  positioned between the receptacle clamp  2461  and the top threaded insert  2158  can directly or indirectly secure the first concentric accessory terminal  2170  to the top threaded insert  2158 . 
     When assembled, additional fasteners  8  can secure the power receptacle  2161  within the second housing  29 , or lamp holder  35 . The first housing  4  of the lamp module  101  can be screwed into the power receptacle  2161  to electrically connect the lamp module  101  with the power cable  1810 , thereby providing power to the lamp module  101 . 
     In the aspect shown, the lamp module group  100  can comprise one or more arms  2436 , which can be coupled to the base  36 , such as with fasteners  8  for example and without limitation. The arm or arms  2436  can engage with the fixing rod  37  and the fixing nut  2437  to support the lamp holder  35 . The lamp holder  35  can be tiltable relative to the arm or arms  2436  and the base  36 , such as be loosening the fixing nut  2437  relative to the fixing rod  37 . The fixing nut  2437  can be tightened on the fixing rod  37  to secure the lamp holder  35  relative to the arm or arms  2436  and the base  36 . 
       FIG.  25    shows another aspect of the lamp module group  100  configured for landscaping use. The second housing  29  can be a two-piece version of the lamp holder  35 . In the present aspect, the lamp holder  35  can have a clam-shell design comprising a top shell  2535  and a bottom shell  2536 . The lamp holder  35  can comprise a sealing lens  2533 , a gasket  2532 , and one or more fasteners  8 . The lamp holder  35  can define a receptacle mount  2540  and a shaft mount  2542 . In the present aspect, the receptacle mount  2540  and the shaft mount  2542  can be defined by the bottom shell  2536 ; however, in other aspects, one or both of the receptacle mount  2540  and the shaft mount  2542  can be defined by a different portion of the lamp holder  35 , such as the top shell  2535 , for example and without limitation. 
     When assembled, the power receptacle  2161  can be coupled to the receptacle mount  2540  by fasteners  8 . The first housing  4  of the lamp module  101  can be screwed into the power receptacle  2161 . The gasket  2532 , which can extend around a perimeter of the lamp holder  35 , can be placed between the shells  2535 , 2536 , and the sealing lens  2533  can be placed between the shells  2535 , 2536  at an opening (not shown) of the lamp holder  35 . The shells  2535 , 2536  can then be coupled together with the fasteners  8 , thereby sealing the lamp module  101  inside the lamp holder  35 . 
     The shaft mount  2542  can be configured to receive the shaft  6 . In the present aspect, the shaft  6  can be a threaded stub-shaft  2506 , and the shaft  6  can be threaded into the shaft mount  2542 . A power cable (not shown), can extend through the shaft  6  and the shaft mount  2542  to the power receptacle  2161 , thereby providing power to the attached lamp module  101 . 
     In the present aspect, the lamp module group  100  can further comprise a stake  2508 , which can be configured to stab into a ground surface, such as the earth. The stake  2508  can also define a threaded opening  2509 , which can receive a portion of the shaft  6  to couple the lamp holder  35  atop the stake  2508 . With the stake  2508  stabbed into the ground surface, the lamp holder  35  can be supported above the ground surface, such as in a garden or landscape setting, for example and without limitation. In some aspects, the lamp module group  100  of  FIG.  25    can be utilized as a path light, such as to light an outdoor walkway, for example and without limitation. 
       FIG.  26    shows another aspect of the lamp module group  100 , which is configured as a path light. The lamp module group  100  can comprise another aspect of the bollard post  2100 . Rather than comprising the second concentric accessory terminal  2172  (shown in  FIG.  23 A ), the bollard post  2100  can be configured for use with the power cable  1810 , which can extend through the bollard post  2100 . The bottom threaded insert  2162  can be configured to receive the power cable  1810 , and the cable insert  2416  can be inserted between the power cable  1810  and the bottom threaded insert  2162  to provide a seal and prevent abrasion of the power cable  1810  where the power cable  1810  extends outwards from the bottom threaded insert  2162 . In some aspects, the lamp module group  100  of the present aspect can further comprise the stake  2508  (shown in  FIG.  25   ), and the threaded opening  2509  can receive the bottom threaded insert  2162 . In other aspects, the bottom threaded insert  2162  can be threaded into a junction box, a base, or other structure to support the lamp module group  100 . 
     In the aspect shown, the cover  34  can omit the base  2128  (shown in  FIG.  21 A ), and the translucent element  2130  can couple directly to the first housing  4  of the lamp module  101 . Specifically, the translucent element  2130  can thread onto the first housing  4 . The lamp module group  100  can further comprise a reflector  2630  positioned within the cover  34  opposite from the first housing  4 . The reflector  2630  can reflect light directed upwards from the lamp module  101  back downwards. The fastener  8  can threadedly engage the reflector  2630 , and the fastener  8  can extend through the translucent element  2130  to threadedly engage the shroud  2134 . In the present aspect, the fastener  8  can be a threaded rod, a stud, or other suitable fastener. The fastener  8  can extend through the cover gasket  2126 , which can be positioned and compressed between the shroud  2134  and the translucent element  2130 , thereby forming a seal between the shroud  2134  and the translucent element  2130 . 
     In the aspect shown, the shroud  2134  can be a two-piece shroud, with an upper shroud  2634  positioned atop a bottom shroud  2635 . In the present aspect, the bottom shroud  2635  can be larger than the upper shroud  2634 , and the bottom shroud  2635  can extend downwards over at least a portion of the cover  34 . The shroud  2134  can be configured to reflect light downwards towards a ground surface. 
       FIG.  27    shows another aspect of the lamp module group  100  attached to a wall  2700 . The lamp module group  100  can be configured as a wall light, such as a sconce. The second housing  29  can be a two-piece version of the lamp holder  35 . In the present aspect, the lamp holder  35  can comprise an outer shell  2735  and an inner shell  2736 . The inner shell  2736  can be substantially flat on one side, and the inner shell  2736  can be configured to be mounted to the wall  2700 , as shown. The lamp holder  35  can comprise the sealing lens  2533 , the gasket  2532 , and one or more fasteners  8 . The lamp holder  35  can define the receptacle mount  2540  and the shaft mount  2542 . In the present aspect, the receptacle mount  2540  and the shaft mount  2542  can be defined by the inner shell  2736 ; however, in other aspects, one or both of the receptacle mount  2540  and the shaft mount  2542  can be defined by a different portion of the lamp holder  35 , such as the outer shell  2735 , for example and without limitation. 
     When assembled, the power receptacle  2161  can be coupled to the receptacle mount  2540  by fasteners  8  (shown removed from the receptacle mount  2540 ). The first housing  4  of the lamp module  101  can be screwed into the power receptacle  2161 . The gasket  2532 , which can extend around a perimeter of the lamp holder  35 , can be placed between the shells  2735 , 2736 , and the sealing lens  2533  can be placed between the shells  2735 , 2736  at an opening  2701  of the lamp holder  35 . The shells  2735 , 2736  can then be coupled together with one or more fasteners  8 , thereby sealing the lamp module  101  inside the lamp holder  35 . 
     The shaft mount  2542  can be configured to receive the shaft  6 . In the present aspect, the shaft  6  can be the threaded stub-shaft  2506 , and the shaft  6  can be threaded into the shaft mount  2542 . The power cable  1810 , can extend through the shaft  6  and the shaft mount  2542  to the power receptacle  2161 , thereby providing power to the attached lamp module  101 . 
     In the present aspect, the lamp module group  100  can further comprise a junction box  2702 , which can be installed, or roughed in, behind the wall  2700 . The shaft  6  can threadedly engaged the junction box  2702  to secure the lamp module group  100  to the wall  2700 . The power cable  1810  can be routed through the junction box  2702  behind the wall  2700 . In the present aspect, the lamp module  101  is shown facing downwards; however, in other aspects, the lamp module  101  can face a different direction, such as upwards, outwards, or horizontally, for example and without limitation. In some aspects, the wall  2700  can be a different type of surface, such as a ceiling, floor, cabinet top, or other structure. 
       FIGS.  28 - 30    show various views of another aspect of a lamp module group  2800  comprising another aspect of a lamp module  2801  and another aspect of a power receptacle  2161 , in accordance with the present disclosure. 
       FIG.  28    is an exploded view of the lamp module group  2800 . The lamp module  2801  can comprise an LED lamp board  2810 , a power supply driving module  2802 , a first housing  2804 , and a first mounting plate  2814 . The LED lamp board  2810  can be secured inside the first housing  2804  by fasteners. In the present aspect, the LED lamp board  2810  can comprise three LEDs  1501  (LED  1501  shown in  FIG.  29   ); however, in other aspects, the LED lamp board  2810  can comprise more than or fewer than three LEDs  1501 . In the present aspect, the lamp module  2801  can further comprise three lenses  14 , which can respectively fit over the LEDs  1501 . The reflector cup  13  can define three separate reflector openings  2803  for receiving the lenses  14  and positioning the lenses  14  to align with the LEDs  1501 . In some aspects, the lamp module  2801  can comprise a different number of lenses  14 , such as a single lens  14  configured to fit over each LED  1501 . The sealing lens  33  can fit within the first housing  2804  to at least partially seal the first housing  2804 . 
     In the present aspect, a first terminal  2823  can be mounted directly to the power supply driving module  2802 . The first mounting plate  2814  can define a first mounting plate opening  2815 , and the first terminal  2823  can be received within the first mounting plate opening  2815 . Fasteners can secure the power supply driving module  2802  and the first mounting plate  2814 . 
     The power receptacle  2161  can comprise a second mounting plate  2818 , a second terminal  2825 , a retention ring  2826 , and a power cable  2820 . The power cable  2820  can comprise two or more wires  9 . The power cable  2820  can be connected to the second terminal  2825 , and the power cable  2820  can supply power to the second terminal  2825 . The second terminal  2825  can be inserted into a second mounting plate opening  2821 , and the retention ring  2826  can be inserted into the second mounting plate opening  2821  behind the second terminal  2825  to secure the second terminal  2825  within the second mounting plate opening  2821 . In the present aspect, the retention ring  2826  can threadedly engage the second mounting plate opening  2821 . In some aspects, the retention ring  2826  can snap into place, be adhered into place, or otherwise secured to the second mounting plate  2818 . Fasteners  8  can couple the power receptacle  2161  to the wall  2700 , as shown in  FIG.  29   . 
     The first mounting plate  2814  can define one or more claws  2816 . The second mounting plate  2818  can define one or more radial lugs  2822 . In some aspects, the radial lugs  2822  can be at least partially helical in shape. The mounting plates  2814 , 2818  can be configured to connect the lamp module  2801  and the power receptacle  2161  together by engaging the claws  2816  with the radial lugs  2822 , which can also position the first terminal  2823  in electrical communication with the second terminal  2825 , thereby providing power from the power receptacle  2161  to the lamp module  2801 . 
       FIG.  29    is a cross-sectional view of the lamp module group  2800  of  FIG.  28   . The first housing  2804  can define a housing cavity  2901  with a rear opening  2904  and a bottom opening  2905 . The gasket  32  can be positioned around the rear opening  2904 . In some aspects, the gasket  32  can be coupled to the first housing  2804 , such as with an adhesive. The power supply driving module  2802  and the first mounting plate  2814  can be inserted through the rear opening  2904  and secured within the housing cavity  2901  by fasteners  8 . An insulating cover  2915  can fit over the first terminal  2823 ; however, contacts  2923  of the first terminal  2823  can extend through the insulating cover  2915 . The contacts  2923  can be electrically conductive. The contacts  2923  can be configured to connect in electrical communication with the second terminal  2825  when the lamp module  2801  is coupled to the power receptacle  2161 , thereby supplying power to the power supply driving module  2802 . 
     The power supply driving module  2802  can be electrically connected to the LED lamp board  2810  by wires  9  within the housing cavity  2901 . The LED lamp board  2810  can be inserted through the bottom opening  2905  and mounted to an inner wall  2902  of the first housing  2804 . The lenses  14  can be fit over the LEDs  1501 , and the LED lamp board  2810  can be coated with a layer of potting, glue, or other filler  1502 , which in some aspects can be formulated to conduct, or shunt, heat away from the LED lamp board  2810  to the first housing  2804 . The reflector cup  13  can be fit over the lenses  14 , and the sealing lens  33  can be adhered to the reflector cup  13  with a sealant  2933 , such as silicone, glue, epoxy, or other suitable material. 
     The power receptacle  2161  can be coupled to the wall  2700  by the fasteners  8 , and the power cable  2820  can extend through the wall, such as through a hole or opening. The wires  9  of the power cable  2820  can be connected to a power system (not shown), and the wires  9  can be phase, neutral, ground, positive, negative, or other types of wires for example and without limitation, of the power system. An insulating cover  2926  can be positioned within the retention ring  2826  and between the wall  2700  and the second terminal  2825 . 
       FIG.  30    is a perspective view of the lamp module group  2800  of  FIG.  28    facing the respective mounting plates  2814 , 2818  of the lamp module  2801  and the power receptacle  2161 . To secure the lamp module  2801  to the power receptacle  2161 , the rear opening  2904  can be placed over the power receptacle  2161  with the claws  2816  of the first mounting plate  2814  positioned between the radial lugs  2822  of the second mounting plate  2818 . The lamp module group  2800  can then be twisted to engage the claws  2816  with the radial lugs  2822 , thereby coupling the lamp module  2801  to the power receptacle  2161  and positioning the first terminal  2823  in electrical communication with the second terminal  2825 . 
     The second terminal  2825  can comprise contact pads  3025 . The contact pads  3025  can each be connected in electrical communication with a different wire  9  of the power cable  2820  (wires  9  and power cable  2820  shown in  FIG.  29   ). When the first terminal  2823  is connected in electrical communication with the second terminal  2825  each contact  2923  can each be positioned in electrical communication with a different contact pad  3025 , thereby completing multiple electrical pathways. In the present aspect, each contact pad  3025  can define an arcuate shape and be sized so that the contacts  2923  can remain in contact with the respective contact pads  3025  through the range of rotational motion utilized to engage and disengage the claws  2816  and radial lugs  2822 . 
       FIG.  31    is an exploded view of another aspect of the electronic module group  100  in accordance with another aspect of the present disclosure. In the aspect shown, the electronic module group  100  can comprise the speaker module  3101 , and the electronic module group  100  can be the speaker module group  100 , as referenced above. 
     It is contemplated that the speaker module  3101  can be utilized in place of, or in addition to, various aspects of the lamp module  101  disclosed herein to form various speaker assemblies or combined lamp and speaker assemblies. For example and without limitation, the speaker module  3101  can be suspended by the power cable  1810  (shown in  FIG.  32   ) to form a pendant speaker. In some aspects, the speaker module  3101  can be combined with the bollard posts  2100  of  FIGS.  21  and  26    and/or the stake  2508  of  FIG.  25   , such as to support the speaker module  3101 . In some aspects, the speaker module  3101  can be combined with various aspects of the lamp holder  35 , which can be understood to be a module holder, or more specifically a speaker holder, in that application. It is contemplated that in some aspects, the module holder can house multiple lamp modules  101 , multiple speaker modules  3101 , or combinations of lamp modules  101  and speaker modules  3101 . As noted below, a speaker  1391  of the speaker module  3101  can be waterproof in some applications, and both indoor and outdoor applications for the speaker module group  3100  are contemplated. In some aspects, some accessories, such as the power cable  1810  or the bollard post  2100 , can be branched and capable of electrically connecting multiple modules  101 , 3101  together, including combinations of lamp modules  101  and speaker modules  3101 . In some aspects, multiple speaker modules  3101  can be utilized together to form various different ranges of sound frequency. For example and without limitation, speaker modules  3101  can be tweeters, mid-range loudspeakers, subwoofers, or any other type of speaker, which can be utilized cooperatively. 
     As shown in  FIG.  31   , the speaker module  3101  of the speaker module group  100  can comprise the speaker  3191 , the power supply driving module  2 , the first concentric terminal  3 , and the first housing  4 . The speaker module  3101  can also comprise the insulating sheet  10 , the gasket  32 , the cover  34 , and fasteners  8 . 
     For aspects of the electronic module group  100  comprising the speaker  3191 , the power supply driving module  2  can be configured to power the speaker  3191 , such as to produce a range of frequencies and volumes through the speaker  3191 . In some aspects, the power supply driving module  2  or a separate component of the speaker  3191  can be configured to receive signals wirelessly, which can carry instructions to the speaker  3191  to produce certain sounds at certain volumes. In some aspects, the speaker module  3101  can receive instructions through the first concentric terminal  3  rather than wirelessly. For example and without limitation, the instructions can be the notes of a song, voice recording, an audio track to a television show or movie, or other audio file. The speaker  3191  can comprise a basket  3192  and a coil housing  3193 , which can comprise and house sound producing elements, such as a magnet, an electromagnetic coil, or other components, for example and without limitation. Instructions from the power supply driving module  2  can be communicated to the coil housing  3193  through wires  9 . 
     In some aspects, the speaker  3191  can be a waterproof speaker. The speaker  3191  and the gasket  32  can cooperate to form a seal and prevent the intrusion of elements, such as water, dust, or dirt, from entering the first housing  4  and reaching the power supply driving module  2 . The speaker module  3101  can be waterproof. For example and without limitation, in the present aspect, the speaker module  3101  can be IP65 rated, or better, under IEC standard 60529. 
     The cover  34  can define a plurality of openings  3134 . The openings  3134  can facilitate the projection of sound from the speaker  3191  outwards through the cover  34 . 
       FIG.  32    is a cross-sectional view of the speaker module group  100  of  FIG.  32   , further comprising the power cable  1810 . Two covers  34  are shown. One cover  34  is shown installed in the first housing  4 . A second cover  34  is shown for demonstrative purposes, including to show a top view wherein the openings  3134  are clearly visible. The openings  3134  can take any shape, such as round, polygonal, slots, or gaps, such as those in a wire mesh for example and without limitation. 
     The speaker  3191  can be installed within the first housing  4 , and the speaker  3191  can be coupled to the first housing  4  by the fasteners  8 . The gasket  32  can be positioned between the first housing  4  and the basket  3192 , thereby sealing the main compartment  1508  of the housing cavity  1504 . The main compartment  1508  can be at least partially filled with the potting, glue, or other filler  1502 . The insulating sheet  10  can be positioned around the first concentric terminal  3  and between the first housing  4  and the potting, glue, or other filler  1502 . In the present aspect, the potting, glue, or other filler  1502  can fill the main compartment  1508  up to the coil housing  3193 . A diaphragm  3291  and a cone  3292  of the speaker  3191  can be positioned within the basket  3192 , and the components, such as coils and magnets, within the coil housing  3193  can vibrate the diaphragm  3291  and the cone  3292  to produce sound. 
     The power cable  1810  can be coupled to the speaker module  3101  to provide power to the speaker module  3101 . The second housing  29  can thread onto the shaft  6 , with the sealing ring  30  therebetween, to form a waterproof connection, and the first concentric terminal  3  can electronically connect with the second concentric terminal  7  of the power cable  1810  to supply power to the power supply driving module  2 , which in turn can provide power to the speaker  3191 . 
       FIG.  33    shows a partial cross-sectional view of another aspect of an accessory  3300  of the electronic module group  100 , the power cable  1810 , and another aspect of a power cable  3310  in accordance with another aspect of the present disclosure. The accessory  3300  can be utilized with various aspects of the lamp module  101  and the speaker module  3101  disclosed herein. In the present aspect, the accessory  3300  can be a catenary mount  3300 . 
     The catenary mount  3300  can comprise the accessory housing  2154 , a top plate  3306 , and a wire hook  3304 . The wire hook  3304  can be configured to hang on a catenary wire  3390 , as shown. The catenary wire  3390  can be a structural wire, or cable, that can be secured between two points. The catenary wire  3390  can be taut or relaxed. A nut  3308  and a fastener  8  can be engaged with the wire hook  3304 . The nut  3308  can be threaded onto the wire hook  3304 . In the aspect shown, the nut  3308  can be tightened against the catenary wire  3390  to pinch the catenary wire  3390  between the wire hook  3304  and the nut  3308 . The fastener  8  can be threaded into the nut  3308 . The fastener  8  can extend through the nut  3308  to engage with the wire hook  3304  to rotationally fix the nut  3308  to the wire hook  3304 . In some aspects, the fastener  8  can be a set screw. In some aspects, the fastener  8  can be a thumb screw. In some aspects, the fastener  8  can be configured to be tightened with a tool, such as a wrench, socket, screwdriver, or other suitable tool. 
     The wire hook  3304  can be hingedly coupled to the top plate  3306  by another fastener  8 . The top plate  3306  can mount to the accessory housing  2154 . An accessory gasket  3302  can be positioned between the top plate  3306  and the accessory housing  2154  and form a seal therebetween. 
     In the present aspect, the catenary mount  3300  can comprise a plurality of concentric terminals  7 , 3303 , 3307 . The concentric terminals  7 , 3303 , 3307  can be interconnected by a plurality of wires  9  (shown in  FIG.  34   ) and wire connectors  2174 , such as wire nuts. The second concentric terminal  7  can be mounted within the threaded bore, or bottom threaded bore,  2160  to form the power receptacle  2161 , which can be a bottom power receptacle  2161  in the present aspect. The sealing ring  30  can be positioned within the bottom power receptacle  2161 . The bottom power receptacle  2161  can be positioned opposite from the wire hook  3304 . The bottom power receptacle  2161  can be configured to coupled with the shaft  6  of the module  101 , 3101 , such as a lamp module or speaker module. 
     The concentric terminal  3303  can be a first accessory concentric terminal  3303 , and the concentric terminal  3307  can be a second accessory concentric terminal  3307 . In the present aspect, the first accessory concentric terminal  3303  can be a male connector. In the present aspect, the second accessory concentric terminal  3307  can be a female connector. In the present aspect, the accessory concentric terminals  3303 , 3307  can be larger in size than the second concentric terminal  7 . In other aspects, the accessory concentric terminals  3303 , 3307  can be sized to match the size of the second concentric terminal  7  and the first concentric terminal  3  (shown in  FIG.  4   ). 
     The first accessory concentric terminal  3303  can be positioned within the shaft  6  of the accessory housing  2154 . The shaft  6  can extend out of a side of the accessory housing  2154 . The second accessory concentric terminal  3307  can be positioned within a second threaded bore, or side threaded bore,  2160 , which can be defined opposite from the shaft  6 . The shaft  6  and the side threaded bore  2160  can be positioned above the bottom threaded bore  2160  and below the top plate  3306 . The second accessory concentric terminal  3307  and the second threaded bore  2160  can define a second power receptacle  2161 , which can be a side power receptacle  2161 . The sealing ring  30  can be positioned within the side power receptacle  2161 . 
     The power cable  1810  can be coupled to the stem  6 , such as by threadedly engaging the second housing  29  with the stem  6 . The sealing ring  30  can form a seal between the first accessory concentric terminal  3303  and the power cable  1810 . The power cable  1810  can electrically connect to the first accessory concentric terminal  3303  and supply power to the catenary mount  3300 , and more specifically to the second concentric terminal  7  and the second accessory concentric terminal  3307 . If a module, such as the lamp module  101  or the speaker module  3101 , is connected to the second concentric terminal  7 , the module can indirectly receive power from the power cable  1810  through the catenary mount  3300 . 
     In some aspects, the side power receptacle  2161  can be sealed, such as with a plug (not shown), and the second accessory concentric terminal  3307  may not electrically connect with any other components. In the aspect shown, the side power receptacle  2161  can be configured to connect with the second power cable  3310 . The second power cable  3310  can comprise a male concentric terminal  3313  in the present aspect, and the second power cable  3310  can comprise a second housing  3329 , which can be configured as a male second housing  3329 . The male concentric terminal  3313  and the male second housing  3329  can be configured to electrically connect with the side power receptacle  2161 . In some aspects, multiple catenary mounts  3300  can be mounted on the catenary wire  3390 , and the second power cable  3310  can connect to another catenary mount  3300  to provide power to it. Accordingly, a chain of catenary mounts  3300  and modules  101 , 3101  can be mounted along the catenary wire  3390 . 
     In other aspects, the catenary mount  3300  can comprise any combination of male and female concentric terminals  7 , 3303 , 3307 . Either power receptacle  2161  can be a shaft  6 , or the shaft  6  can be a threaded bore  2160  of a power receptacle  2161 . 
       FIG.  34    is an exploded view of the catenary mount  3300  of the electronic module group  100 . As shown, a plurality of wires  9  can electrically connect the concentric terminals  7 , 3303 , 3307  in electrical communication. The wires  9  can be coupled together with electrical connectors  2174 . Any of the concentric terminals  7 , 3303 , 3307  can be fit with one of the sealing rings  30 , or the power cables  1810 , 3310  (shown in  FIG.  33   ) can be fit with the sealing rings  30 . 
     A plurality of fasteners  8  can couple the top plate  3306  to the accessory housing  2154 , and the fasteners  8  can compress the gasket  32  between the top plate  3306  and the accessory housing  2154  to form a seal therebetween. A fastener  8  can hingedly couple the wire hook  3304  to the top plate  3306 . 
     The wire hook  3304  can define hook threading  3408 . The wire hook  3304  can also define a wire slot  3404 . In the present aspect, the wire slot  3404  can extend through the hook threading  3408  on one side, which can define a top threading portion  3412  above the wire slot  3404  and a bottom threading portion  3410  below where the wire slot  3404  intersects the hook threading  3408 . A top notch  3406  of the wire slot  3404  can extend above the top threading portion  3412 . 
     In use, the nut  3308  can be threaded down so that the nut  3308  threadedly engages the bottom threading portion  3410  and is positioned below the wire slot  3404 . The catenary wire  3390  (shown in  FIG.  33   ) can be slipped into the wire slot  3404 . The nut  3308  can then be threadedly rotated upwards until the nut  3308  engages the top threading portion  3412 . With the nut  3308  threadedly engaging the top threading portion  3412 , the catenary wire  3390  can be captured in the top notch  3406  by the nut  3308 . In some aspects, the nut  3308  can be slightly spaced apart from the catenary wire  3390 , which can allow the wire hook  3304  to slide along the catenary wire  3390 . In some aspects, the nut  3308  can be tightened against the catenary wire  3390 , and the catenary wire  3390  can be pinched between the nut  3308  and the top notch  3406 , which can secure the catenary mount  3300  along the catenary wire  3390 . The fastener  8 , such as the set screw, can be tightened into the nut  3308  to engage the wire hook  3304  and prevent the nut  3308  from rotating relative to the wire hook  3304 . 
     One should note that conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain aspects include, while other aspects do not include, certain features, elements and/or steps. Thus, such conditional language is not generally intended to imply that features, elements and/or steps are in any way required for one or more particular aspects or that one or more particular aspects necessarily include logic for deciding, with or without user input or prompting, whether these features, elements and/or steps are included or are to be performed in any particular aspect. 
     It should be emphasized that the above-described aspects are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the present disclosure. Any process descriptions or blocks in flow diagrams should be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included in which functions may not be included or executed at all, may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present disclosure. Many variations and modifications may be made to the above-described aspect(s) without departing substantially from the spirit and principles of the present disclosure. Further, the scope of the present disclosure is intended to cover any and all combinations and sub-combinations of all elements, features, and aspects discussed above. All such modifications and variations are intended to be included herein within the scope of the present disclosure, and all possible claims to individual aspects or combinations of elements or steps are intended to be supported by the present disclosure.