Patent Publication Number: US-10788194-B2

Title: Rotatable light fixture secured to a junction box via a base

Description:
BACKGROUND 
     Light fixtures are generally wired directly or indirectly through a connecting base to a junction box, however this may not allow for adjustments to the rotation, mounting, and aiming of the fixture without breaking the electrical contact from the junction box and/or connecting base as a result of the initial orientation of the junction box and/or connecting base. 
     SUMMARY 
     In various embodiments, a rotatable light fixture and receiving mounting base which maintains electrical connectivity between the light fixture and the mounting base, may comprise the mounting base mountable against a surface and being electrically connectable to a junction box. In some embodiments, the mounting base includes a plurality of rotational exposed contacts along about the annular position of each of the rotationally exposed contacts. In some embodiments, the light fixture including a plurality of electrical contacts in rotational engagement with the plurality of annularly exposed contacts of the mounting base. In various embodiments, the light fixture maintains electrical connectivity between the electrical contacts of the light fixture and the contact of the mounting base for about 360 degrees of rotational between the light fixture and the mounting base. In addition, in some embodiments, the light fixture includes a plurality of modulated LEDs controlled by an LED controller, the plurality of LEDs in electrical connectivity with the electrical contacts of the light fixture. In various embodiments, the mounting base and the light fixture rotationally engage each other and are rotationally secured to each other through a mechanical locking mechanism. In some embodiments, the mechanical locking mechanism including a cam lock and one or more retention members on the light fixture, the mounting base including an annular groove, at least one of the cam lock and the one or more retention members engage the annular groove. 
     In further embodiments, the cam lock may be rotationally engaged retained on the light fixture and rotate relative to the base. Rotation of the cam lock allows the cam lock to lock the light fixture into a fixed relative positioned with respect to the base by engaging a corresponding groove of the base upon rotation. 
     In addition, in some embodiments, the plurality of rotational contacts of the mounting base and the plurality of electrical contacts of the light fixture include at least one of an annular ring and a leaf spring. In various embodiments, the leaf spring includes a plurality of leaf springs. In some embodiments, the plurality of leaf springs are located on the light fixture. In various embodiments, the annular rings include a plurality of annular rings. In some embodiments, the annular rings are located on the mounting base. In even further embodiments, the annular rings of the mounting base are positioned in an associated number of annular grooves which receive the rings. In even further embodiments, a centrally positioned disc may be centrally located and positioned relative to the annular rings on the mounting base. Moreover, in various embodiments, the plurality of rotational exposed contacts on the mounting base include a rotatable electrical plug which receives an electrically rotatable mating plug on the light fixture. 
     In some embodiments, a rotatable light fixture may comprise a mounting base electrically coupled to a junction box. In various embodiments, the light fixture may include a light fixture housing rotatably connected to the mounting base defining a plurality of rotational orientations between the light fixture housing and the mounting base. In some embodiments, the light fixture may include an electrical connection between the mounting base and the light fixture housing, wherein the electric connection is rotatably electrically engaged during the plurality of rotational orientations between the light fixture housing and the mounting base during rotation. In addition, in some embodiments, the light fixture housing and the mounting base is rotational secured in at least one of the plurality of rotational orientations between the light fixture housing and the mounting base. 
     In addition, in various embodiments, the light fixture housing includes a cam lock and one or more retention members and wherein the mounting base includes an annular groove, and wherein the cam lock and the one or more retention members engage the annular groove. In some embodiments, the cam lock at least rotationally secures the light fixture housing relative to the mounting base in the at least one rotational orientation. In various embodiments, the cam lock axially secures the light fixture housing relative to the mounting base in the at least one rotational orientation. In some embodiments, the one or more retention members axially retain the light fixture housing with the mounting base. In various embodiments, the one or more retention members include a first retention member and a second retention member, wherein the first retention member is different from the second retention member. In some embodiments, the first retention member and the second retention member rotationally and axially engage the annular groove allowing rotation of the light fixture housing relative to the mounting base while maintaining the relative axial position between the light fixture housing and the mounting base, and wherein a first axial removal force to separate the second retention member from the annular groove is less than a second axial removal force to separate the first retention member from the annular groove thereby allowing axial separation of the light fixture housing from the mounting base when the cam lock is disengaged from the annular groove. In various embodiments, the cam lock is on an opposing side of the light fixture housing than the first retention member. In some embodiments, the electrical connection between the mounting base and the light fixture housing includes hot, neutral, and ground connections electrically maintained for 360 degrees of rotation between the mounting base and the light fixture housing. Moreover, in some embodiments, the light fixture housing and the mounting base each include a plurality of electrical contacts rotationally held in electrical contact with the other of the light fixture housing and the mounting base. In various embodiments, the mounting base includes reusable push-in wire connectors to electrically connect to an electrical hot, neutral, and ground wires of the junction box. In some embodiments, the light fixture includes one or more gaskets between the light fixture housing and the mounting base. In addition, in various embodiments, the light fixture may include a cam lock rotationally securing the light fixture housing relative to the mounting base in the at least one rotational orientation and sealing the one or more gaskets between the light fixture housing and the mounting base. In some embodiments, the light fixture housing includes one or more light sources. Moreover, in some embodiments, the light fixture housing includes a depending skirt with one or more retention members projecting inwardly therefrom. 
     In some embodiments, a method of mounting a rotatable light fixture in a rotational position comprises the steps of providing a mounting base and securing the mounting base to a junction box, providing a light fixture housing, axially engaging the light fixture housing with the mounting base, electrically coupling the light fixture housing with the mounting base, rotating the light fixture housing relative to the mounting base, and/or maintaining the electrically coupling between the light fixture housing and the mounting base during the step of rotating the light fixture housing. 
     In addition, in various embodiments, method may include rotationally locking the light fixture housing relative to the mounting base. In some embodiments, the method may include electrically coupling the mounting base with the junction box. In various embodiments, the electrically coupling includes using reusable push-in wire connectors. In some embodiments, maintaining the electrically coupling between the light fixture housing and the mounting base includes one or more electrical connections of the light fixture housing having rotational contact with one or more fixed electrical connections of the mounting base during rotation. In various embodiments, axially locking the light fixture housing relative to the mounting base by at least one of one or more retention members and a cam latch. Moreover, in some embodiments, both the one or more retention members and the cam latch axially lock the light fixture housing relative to the mounting base. In various embodiments, the method may include axially disengaging the light fixture housing from the mounting base. In some embodiments, at least one of the one or more retention members includes less axial removal force than another of the one or more retention members when axially disengaging the light fixture housing from the mounting base. In addition, in various embodiments, the method may include disengaging the cam latch. 
     As used herein for purposes of the present disclosure, the term “LED” should be understood to include any electroluminescent diode or other type of carrier injection/junction-based system that is capable of generating radiation in response to an electric signal and/or acting as a photodiode. Thus, the term LED includes, but is not limited to, various semiconductor-based structures that emit light in response to current, light emitting polymers, organic light emitting diodes (OLEDs), electroluminescent strips, and the like. In particular, the term LED refers to light emitting diodes of all types (including semi-conductor and organic light emitting diodes) that may be configured to generate radiation in one or more of the infrared spectrum, ultraviolet spectrum, and various portions of the visible spectrum (generally including radiation wavelengths from approximately 400 nanometers to approximately 700 nanometers). Some examples of LEDs include, but are not limited to, various types of infrared LEDs, ultraviolet LEDs, red LEDs, blue LEDs, green LEDs, yellow LEDs, amber LEDs, orange LEDs, and white LEDs (discussed further below). It also should be appreciated that LEDs may be configured and/or controlled to generate radiation having various bandwidths (e.g., full widths at half maximum, or FWHM) for a given spectrum (e.g., narrow bandwidth, broad bandwidth), and a variety of dominant wavelengths within a given general color categorization. 
     For example, one implementation of an LED configured to generate essentially white light (e.g., a white LED) may include a number of dies which respectively emit different spectra of electroluminescence that, in combination, mix to form essentially white light. In another implementation, a white light LED may be associated with a phosphor material that converts electroluminescence having a first spectrum to a different second spectrum. In one example of this implementation, electroluminescence having a relatively short wavelength and narrow bandwidth spectrum “pumps” the phosphor material, which in turn radiates longer wavelength radiation having a somewhat broader spectrum. 
     It should also be understood that the term LED does not limit the physical and/or electrical package type of an LED. For example, as discussed above, an LED may refer to a single light emitting device having multiple dies that are configured to respectively emit different spectra of radiation (e.g., that may or may not be individually controllable). Also, an LED may be associated with a phosphor that is considered as an integral part of the LED (e.g., some types of white LEDs). In general, the term LED may refer to packaged LEDs, non-packaged LEDs, surface mount LEDs, chip-on-board LEDs, T-package mount LEDs, radial package LEDs, power package LEDs, LEDs including some type of encasement and/or optical element (e.g., a diffusing lens), etc. 
     The term “light source” or “illumination source” should be understood to refer to any one or more of a variety of radiation sources, including, but not limited to, LED-based sources (including one or more LEDs as defined above), incandescent sources (e.g., filament lamps, halogen lamps), fluorescent sources, phosphorescent sources, high-intensity discharge sources (e.g., sodium vapor, mercury vapor, and metal halide lamps), lasers, other types of electroluminescent sources, pyro-luminescent sources (e.g., flames), candle-luminescent sources (e.g., gas mantles, carbon arc radiation sources), photo-luminescent sources (e.g., gaseous discharge sources), cathode luminescent sources using electronic satiation, galvano-luminescent sources, crystallo-luminescent sources, kine-luminescent sources, thermo-luminescent sources, triboluminescent sources, sonoluminescent sources, radioluminescent sources, and luminescent polymers. 
     A given light source may be configured to generate electromagnetic radiation within the visible spectrum, outside the visible spectrum, or a combination of both. Hence, the terms “light” and “radiation” are used interchangeably herein. Additionally, a light source may include as an integral component one or more filters (e.g., color filters), lenses, or other optical components. Also, it should be understood that light sources may be configured for a variety of applications, including, but not limited to, indication, display, and/or illumination. An “illumination source” is a light source that is particularly configured to generate radiation having a sufficient intensity to effectively illuminate an interior or exterior space. In this context, “sufficient intensity” refers to sufficient radiant power in the visible spectrum generated in the space or environment (the unit “lumens” often is employed to represent the total light output from a light source in all directions, in terms of radiant power or “luminous flux”) to provide ambient illumination (i.e., light that may be perceived indirectly and that may be, for example, reflected off of one or more of a variety of intervening surfaces before being perceived in whole or in part). 
     The term “lighting fixture” is used herein to refer to an implementation or arrangement of one or more lighting units in a particular form factor, assembly, or package. A given unit may have any one of a variety of mounting arrangements for the light source(s), enclosure/housing arrangements and shapes, and/or electrical and mechanical connection configurations. Additionally, a given unit optionally may be associated with (e.g., include, be coupled to and/or packaged together with) various other components (e.g., control circuitry) relating to the operation of the light source(s). An “LED-based fixture” refers to a lighting unit that includes one or more LED-based light sources as discussed above, alone or in combination with other non LED-based light sources. A “multi-channel” lighting unit refers to an LED-based and/or non LED-based lighting unit that includes at least two light sources configured to respectively generate different spectrums of radiation, wherein each different source spectrum may be referred to as a “channel” of the multi-channel lighting unit. 
     It should be appreciated that all combinations of the foregoing concepts and additional concepts discussed in greater detail below (provided such concepts are not mutually inconsistent) are contemplated as being part of the inventive subject matter disclosed herein. In particular, all combinations of claimed subject matter appearing at the end of this disclosure are contemplated as being part of the inventive subject matter disclosed herein. It should also be appreciated that terminology explicitly employed herein that also may appear in any disclosure incorporated by reference should be accorded a meaning most consistent with the particular concepts disclosed herein. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the drawings, like reference characters generally refer to the same parts throughout the different views. Also, the drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention. 
         FIG. 1  illustrates a perspective view of an implementation of the light fixture described herein secured to a junction box in a ceiling mount application. 
         FIG. 2  illustrates a perspective view of the rotatable light fixture housing and housing electrical connectors exploded away from the mounting base and base electrical connectors of  FIG. 1 . 
         FIG. 3  illustrates a sectional view of the mounting base of  FIG. 2  described herein illustrating the wires being engaged into the reusable push-in wire connectors and the connectors of the light fixture housing engaging the connectors in one rotational position with the remaining portions of the light fixture housing removed. 
         FIG. 4  illustrates a sectional view of a light fixture of  FIG. 1  described herein taken along line  4 - 4 , with the rotational lock shown in an engaged position in solid lines and a disengaged position in broken lines. 
         FIG. 5  illustrates a perspective view of another embodiment of an implementation of the light fixture described herein. 
         FIG. 6  illustrates a sectional view of the light fixture of  FIG. 5  taken along line  6 - 6 . 
         FIG. 7  illustrates a perspective view of the light fixture housing exploded away from the mounting base of  FIG. 5 . 
         FIG. 7A  illustrates an enlarged sectional view of the first retention member of the light fixture housing described herein. 
         FIG. 7B  illustrates an enlarged sectional view of the second retention member of the light fixture housing described herein. 
         FIG. 8  illustrates a sectional view of a light fixture of  FIG. 6  taken along line  8 - 8 , with the rotational lock shown in an engaged position in solid lines and a disengaged position in broken lines. 
     
    
    
     DETAILED DESCRIPTION 
     It is to be understood that a light fixture is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The described embodiments are capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless limited otherwise, the terms “connected,” “coupled,” and “mounted,” and variations thereof herein are used broadly and encompass direct and indirect connections, couplings, and mountings. In addition, the terms “connected” and “coupled” and variations thereof are not restricted to physical or mechanical connections or couplings. 
     Turning to the Figures,  FIGS. 1-4  illustrates an example of a light fixture  10  described herein wherein the base is electrically energized from the junction box and provides electrical power to the light fixture via rotational quick connect electrical contacts thereby allowing the luminaire/electrical fixture to be wired without traditional wiring techniques. Included in one implementation is a light fixture housing  20  and a mounting plate or base  30 . In some embodiments, one or more light fixture housings  20  may be used on the same or universal mounting base  30 . The light fixture housing  20  may include a variety of one or more light sources  90  (e.g. LEDs). The light sources and/or LEDs of the light fixture may be powered by the electrical connectivity between the light fixture housing and the base. Control electronics such as one or more LED drivers and an integrated or individual LED light controller may also be implemented in the light fixture in order to control the LEDs, modify light output, control color temperature and or brightness, among other light output characteristics. Such modification of light output characteristics may be implemented by modulation techniques including pulse width modulation, frequency modulation, amplitude modulation, embedded pulse code modulation for data inclusion, as well as others and combinations thereof. The controller and/or driver for the LEDs may be integrated into a single electronic circuit and/or control processor are not necessarily required to be separated or integrated as either may be implemented, alone or in a combined configuration to control the light output of the LEDs. The respective modulated pulses from the driver, drivers, and/or controllers as well as possibly the baseline currents output by the driver circuits may be independently controlled by higher level logic of a system controller. In a digital controller example, such logic may be implemented by a programmable microcontroller, although those skilled in the art will recognize that the logic could take other forms, such as discrete logic components, an application specific integrated circuit (ASIC), etc. 
     The mounting base  30  may be electrically coupled to a junction box  1  on a ceiling  2 , wall, or other structure. The light fixture housing  20  may rotate relative to the installed orientation of the mounting base  30  allowing the initial orientation of the junction box  1  and/or mounting base  30  to not limit the orientation of the subsequently attached light fixture housing  20 . Additionally, the interface between the light fixture  20  and the mounting base does not require direct installation wiring and electrical connection and power for the fixture is supplied through the rotational quick connect construction. Further, the coupling of the light fixture housing  20  and mounting base  30  may allow adjustments to the rotation, mounting, and aiming of the fixture without breaking the electrical contact from the junction box  1  and/or connecting base  30 . 
     Multiple implementations may be appreciated for electrically connecting the mounting base  30  to the associated junction box  1  which provides power. In some implementations, the mounting base  30  may be hard wired directly to the hot, neutral and ground connections to the junction box. In other implementations, the junction box and the mounting base may be connected by quick connect mechanical connectors. In one of the examples and implementations, as is shown in  FIGS. 1 and 3 , the wires  3  (e.g. hot, neutral, and ground) may utilize reusable push-in wire connectors  40  to electrically connect the mounting base  30 /connectors  32  to the junction box  1 . The implementation of quick connect devices may reduce or eliminate the requirement of one or more tools needed for wiring the 120V AC wires  3  with the mounting base  30 . The wires  3  are held in tension by tensioned springs  42  and may be disengaged by releasing the tension via the corresponding release members/wedges  44 . Although one method and apparatus is shown for connecting wires  3  to the mounting base  30 , it should be understood that a variety of wire connectors and methods may be used to electrically connect the connectors  32  of the mounting base  30  to the wires  3 . Further, the use of the quick connect features and mechanical interfaces described allow light fixtures to be connected to a base without the requirement of wiring the light fixture by the user. Thus, upon replacing the light fixture, utilization of the disclosed interface allows the owner to disconnect and connect different light fixture without the necessity of wiring changes or electrical connectivity apart from simply installing the light fixture rotationally. 
     The light fixture housing  20  may maintain rotationally exposed electrical connection to the mounting base  30  during rotation and between rotational orientations/adjustments. When assembled, the light fixture housing  20  may be electrically coupled regardless of the rotational orientation of the light fixture housing  20  relative to the mounting base  30 . As such, the ground, neutral, and hot connections  32  may be electrically maintained for 360 degrees of rotation (e.g. CW and/or CCW) about an axis A. The electrical contacts/connectors  22  of the light fixture housing  20  may be mechanically and electrically coupled to the electrical contacts/connectors  32  of the mounting base  30  when assembled and/or locked in rotational position as shown in  FIGS. 1 and 4 . 
     The electrical contacts or connections  32 ,  22  between the mounting base  30  and the light fixture housing  20  may be rotatably electrically engaged during the rotation (e.g. in the plurality of rotational orientations of the light fixture housing in respect to the base). As shown in  FIGS. 3 and 6 , the one or more electrical connections  22 ,  122  of the light fixture housing  20 ,  120  each have rotational contact with the one or more respective electrical connections  32 ,  132  of the mounting base  30 .  130 . The one or more contacts  22  of the light fixture housing  20  rotates with the housing and maintains the contact (e.g. axial and/or radial contact, etc. for 360 degrees contact about the axis A) with the fixed connections  32  of the mounting base  30 . Stated alternatively, the one or more engaging contacts  22  may be rotationally held in electrical contact with the other corresponding contacts  32  at the base during any point of the rotation. Thus, in some implementations, the rotatable light fixture housing  20  may be in rotational connection with the base  30  wherein electrical connectivity between the light fixture  20  and the base  30  is maintained during all points of rotation. In other embodiments, rotational connectivity may be maintained only during a predefined rotational extent wherein the light fixture housing  20  is energized at recognized rotational points relative to the base  30  while at other points during the rotational extent relative to the two the electrical connections may be interrupted. Similar aspects and features may be implemented in a rotatable electrical plug connection as well. 
     For example, in the embodiment shown in  FIGS. 1-4 , the light fixture housing  20  includes a pair of tensioned leaf springs or brushes  23  engaging concentric annular rings  33  (e.g. hot and neutral) of the mounting base  30 , while a centrally located coil spring  24  may be used for ground with a corresponding centrally located disc  34  of the mounting base  30 . In such embodiment, the leaf springs or brushes  23  maintain electrical connectivity to the energized concentric annular rings  33  during the entire rotational extent of the fixture  20  relative to the base  30  while the rings  33  are continually in electrical connectivity to respective hot, neutral and ground wiring from the junction box. In the example of  FIG. 2 , the annual wires  33  and disc  34  are directly connected to respective hot, neutral and ground connections from the junction box. Upon installation of the fixture  20  onto the base  30 , leaf springs  23  engage the respective annular ring  33  and are thereby electrically connected to the respective line of the junction box without the user having to wire the light fixture. Spring  24  or other similar engagement surface, tab, contact or spring can be electrically connected to the disc  34 . Spring  24  and springs  23  for example as depicted in the embodiment of the figure, could allow for not only continued engagement around a rotational extent of engagement between the structures but also elevational differences thereby maintaining electrical connectivity at differing connection heights between the two structures  20 ,  30 . 
     In various constructions, the plurality of rings  33  of the mounting base may be installed within a corresponding number of annular extending grooves formed within the base to fixedly retain the rings therein. Further, the disc  34  may be centrally positioned within the annular grooves and the annular rings within a recess formed in the base  30 . The recess and annular grooves form a mechanism to positionally retain both the annular rings and the disc within the base. 
     Alternative constructions maintaining electrical connectivity between the housing  20  and the base  30  may be utilized which minimize the exposed surface of the wiring. For example, the embodiment of the light fixture  110  shown in  FIGS. 5-8 , includes the rotatable connection/contacts  122 ,  132  there between utilizing a different mechanical interface. The electrical connection  122 / 132  include a mating male/female rotational plug with annular rings/pins/contact members maintaining electrical contact during relative rotation and/or rotational position. As shown in the embodiments, the electrical contacts or conductive rings of the mounting base  30 ,  130  are recessed within surrounding structure (e.g. top face, plug, etc.) and may reduce exposed wiring and/or contacts from the user. Further, as shown in the embodiment of light fixture housing  120   FIGS. 6 and 7 , the connections  122  may also be recessed. 
     Rotatable plug  132  which enters into receptacle  122  allows for electrical connectivity between the fixture and the base while preventing the necessity of actual wiring of the fixture. Further, in the various examples, electrical connectivity between the base and the electrical fixture may be maintained and be rotationally exposed about the entire 360 degrees of rotation there between. Thus, in some examples and implementations, the base  132  may include electrical contacts on a first and second surface of the annular ring of the base. The electrical contacts can be either on an upper surface or on a side surface one of the annular rings depicted in this one of several embodiments. For example, annular rings may be located along either a top surface of a wall on the base or along an interior or exterior wall surface. Each such annular ring may be rotationally exposed for connectivity by an engaging leaf spring or contact surface from a mating light fixture along an entire rotational extent between the fixture and mounting base. Alternatively, the rotational connectivity may be limited in radial extent or include electrically connected and disconnected radial positions. 
     For example, annular walls may be utilized in  FIG. 7  wherein walls formed on the base  130  telescope into annular walls formed on the light fixture  120  such that they plug into each other. Electrical connection may be achieve by the various implementations of rings and opposing and opposing rings or metal springs which contact opposing rings. Such opposing electrically conductive surfaces may be frictionally engaged between each other by virtue of the angled nature of the interfacing walls or a combination of spring leafs or outwardly extending contacts may be utilized with the opposing rings. Such variations may be used on either side of the electrical interface so long as, in some embodiments, electrical contact is maintained during the full rotational engagement between the light fixture  120  and the base  130 . 
     A central post receiving receptacle could be provided in the base to receive a mating electrical contact from the light fixture  120  while also working in conjunction with additional contacts in the rotational plug. In some embodiments, opposite orientation structures could be provided such as providing the post receiving receptacle on the other structure and/or in combination with annular contact surfaces receiving and contacting electrical contacts on the annual surface of either of the base and light fixture. It should be understood a variety of rotatable electrical connections/couplings may be used between the light fixture housing and the mounting base and still be within the scope of the invention. 
     In some implementations, the light fixture housing may be rotational secured in at least one rotational orientation relative to the mounting base. In the embodiments shown, a cam lock or latch may be used to lock or fix the rotational position. When in a disengaged position as shown in broken lines in  FIGS. 4 and 8 , the rotational lock (e.g. cam lock) allows the light fixture housing  20 ,  120  to rotate about the axis A/mounting base  30 ,  130 . Although the cam lock is shown in the embodiments, it should be understood that a variety of one or more locking mechanisms may be used to fix the relative rotation between the housing and the mounting base. For example, screws which enter into the side of the fixture and which contact the base to maintain relative position between the two may be utilized. As well, for example, rotational stop-locks with threads engaging between the two structures, engagement lugs which engage at specific rotational positions, push and turn engagement structures between the base and the housing  20 / 120  may also varyingly be implemented. 
     In some embodiments, the light fixture  10 ,  110  may include a variety of water proofing features to reduce the flow of water into the light fixture and/or internally between structures of the components. Weather proofing and water proofing between the light fixture and the base may prevent moisture intrusion into the electrical connectivity and interface area providing electrical connection and power to the light fixture. Moisture intrusion into such areas could potentially cause corrosion or other issues related to the exposed electrical connecting structures. Various water prevention structures can be implemented in the interface areas between the two structures. 
     For example, one or more seals or gaskets  80  may be used between the light fixture housing  20  and the mounting base  30 . As shown in  FIG. 6 , one or more gaskets or O-rings  81  may be positioned between the light fixture housing and the mounting base. The gasket  81  may be outside the periphery of the electrical rotatable connection  122 ,  132  between the light fixture housing  120  and the mounting base  130  to reduce water from entering towards the electrical coupling. The gasket  81  is shown attached to the mounting base, however the gasket  81  may be coupled to the light fixture housing in some embodiments. Internally within the housing  120  and/or base  130  may be one or more gaskets  82  as well. As shown in  FIGS. 6, 7A, and 7B , another O-ring  82  may be used within the light fixture housing  120  to seal the electrical components within one or more internal compartments. Further, screws or other fasteners may also include gaskets to seal their corresponding openings. 
     In some embodiments, one or more structures of the light fixture housing and/or mounting base may axially and/or rotationally engage each other to allow relative rotation and/or energizing of the light fixture housing. Alternatively, or in combination with the light fixture structure, the user may need to axially and/or rotationally maintain the light fixture housing with the mounting base until the rotational orientation is fixed. 
     With the light fixture housing  20  assembled with the mounting base  30 , the electrical connection  22 ,  32  may be engaged/energized. In some embodiments as shown in  FIGS. 4 and 8 , one or more retention members  50  may be used to axially retain the light fixture housing with the mounting base. The retention members  50  may also allow for relative rotation between the light fixture housing and the mounting base. The retention member  50  may be received within one or more receivers  60  of the mounting base  30 . In the embodiments shown in the Figures, the one or more retention members  50  (e.g. lugs, taps, projections, dimples) project inwardly from a depending skirt  26  of the light fixture housing  20 . When assembled, the light fixture housing skirt  26  overlaps a sidewall or skirt  36  of the mounting base  30 . The mounting base  30 , in the embodiments shown, includes the receiver  60  in the skirt  36 . In the embodiment show, the receiver  60  may be an annular groove  61 . The one or more retention members  50  axial engage the mounting base annular groove  61  thereby axially locking the base  30 /light fixture housing  20 . This may allow the user to have hands free axial retention until rotation of the light fixture housing  20  is needed, if any. The one or more retention members  50  may travel 360 degrees or a portion thereof within the receiver  60  and/or groove  61  allowing the rotation of the light fixture housing  20  relative to the mounting base  30 . Although the groove  61 /receiver  60  is shown as a continuous groove about the outer periphery of the skirt  36 , it should be understood that the receiver may be a variety of quantities, sizes, locations, shapes, and constructions and still be within the scope of the invention. In some embodiments, a rotational lock  70  and the one or more retention members  50  may axial secure the light fixture housing  20  with the mounting base  30 . The one or more retention members  50  may releasable engage (e.g. axial disengagement) from the annular groove allowing replacements, repair, or attaching a different style fixture housing, etc. Further, in some embodiments, the one or more retention members  50  may allow the user to identify that the engagement (e.g. axial) between the base  30  and fixture  20  has been reached and/or disengaged by creating a characteristic identified by the user such as, but is not limited to, an audible click, visual identification, feel, marked rotational position identifiers, etc. Although the retention members are shown as an arcuate projecting tab and the annular groove is shown with an arcuate profile, it should be understood that the retention member/groove may be different in shape, size, quantity, position, and construction. Moreover, for example, the axial/rotational structural engagement may be incorporated in either housing/base. 
     For example, in some embodiments, the rotational locking mechanism  70  (e.g. cam latch) may be used, alone or in combination with other structure (e.g. retention members), to axially and/or rotationally fix the light fixture housing to the mounting base. The cam latch/rotational lock  70  may be used to axially and/or rotationally fixate the light fixture housing with the mounting base. For example, the one or more rotational locks  70  (e.g. cam lock) may partially be inserted into an annular groove  61  in the outer periphery of the mounting base skirt  36  allowing axial retention while being able to rotate of the light fixture housing until the user decides to fully engage the cam latch to fix the rotational orientation. If no retention members are used, one or more rotational locks may be used alone to lock the axial and rotational position of the light fixture housing. 
     In some implementations, the one or more retention members  50  may include one or more different retention members. The one or more retention members  50  may be different in shape, size, quantity, position, and construction. For example, as shown in  FIGS. 2, 4, 7, 7A, 7B, and 8  the retention members may include at least two different retention members to aid in separation/engagement of the light fixture housing with the mounting base. Alternatively, stated a first retention member  51  may be considered a “hard stop” and a second retention member  52  may be considered a “soft stop”. The second retention member  52  may maintain axial rotation/axial engagement but allow for removal/attachment to the groove. The first retention member  51  may be used in combination with the rotational locking mechanism  70  to secure the rotational position and/or engage the sealing function of the one or more gaskets  80  and/or maintain axial rotation/axial engagement. The second retention member  52  may assist the user in removing/attaching the light fixture housing  20  from the axial and/or rotational engagement. For example, the first retention member  51  may be unable to disengage from the groove  61  unless the second retention member  52  disengages first. Further in some embodiments, the first retention member  51  may need to be axial engaged with the groove  61  first before the second retention member  52 . In some embodiments, the second retention member  52  may require less axial removal force than the first retention member. 
     As shown in the embodiments in  FIGS. 2, 4, 7, 7B, and 8  the first retention member  51  may be positioned on an opposing side of the rotational lock  70 . This may balance the forces to secure the engagement between the fixture and base. As shown in  FIGS. 2, 4, 7, 7B, and 8 , the first retention member  51  may include a flat shelf top  53  in the direction opposite of the free edge of the skirt  26  of the light fixture housing  20  opposite a tapered edge  54 . As shown in the embodiments in  FIGS. 2, 4, 7, 7A, and 8 , the second retention member  52  may be positioned adjacent the rotational lock  70 . The second retention members  52  may include opposing rounded edges  55  on the top and bottom of the tab or member. The rounded edges  55  of the second retention member  52  may allow for easier removal/engagement (e.g. less removal axial force) than the first retention member  51 . It should be understood that the one or more first and/or second retention members may be in a variety of locations, shapes, sizes, constructions, and quantities. 
     In use, a user may insert the 120V AC wires  3 , projecting from the junction box  1 , into the reusable push-in wire connectors  40  on the bottom of the mounting base  30 . The user may then mount the mounting base  30  to the junction box  1  with one or more fasteners. The light fixture housing  20  may then be engaged (e.g. axially) with the mounting base  30  without the need to handle wires or engage in wiring of a wiring interface between the base and the light fixture. In some embodiments, when axially engaged the one or more retention members  50  and/or rotational lock  70  may engage the annular groove  61  of the mounting base  30  thereby coupling the light fixture housing  20  with the mounting base  30  and/or the electrical connections  22 ,  32  therebetween. A characteristic of the correct engagement therebetween may be identified by the user such as an audible/visual indicator. With the one or more retention members  50 , if used, engaged with the receivers  60 /annular groove  61 , the light fixture housing  20  is engaged (e.g. axially) such that the user may freely rotate the light fixture housing  20  relative to the fixed mounting base  30 . Moreover, the light source/light fixture housing  20  may maintain the electrical coupling between the light fixture housing and the mounting base during the rotation of the light fixture housing. The user may rotate the light fixture housing to aim, orient features of the light fixture, etc. as desired by the application or user. Once the desired rotational orientation is achieved, the user may lock the rotational orientation via the cam lock or rotational lock/fastener  70 . Subsequent rotational adjustments may be made merely by temporarily disengaging the rotational lock. Further, the user may desire to change to a different light fixture housing and still utilize the mounting base, make repairs, or change light sources by disengaging the light fixture housing. 
     Moreover in some embodiments, if the one or more retention members  50 , receivers  60 , and/or rotational lock  70  are not used to engage (e.g. axially) the mounting base  30 , the user may have to hold the light fixture housing  20  to the mounting base  30  while rotating into position or merely orientate before axial engagement before fixing the rotational orientation with the rotational lock  70 . 
     While several inventive embodiments have been described and illustrated herein, those of ordinary skill in the art will readily envision a variety of other means and/or structures for performing the function and/or obtaining the results and/or one or more of the advantages described herein, and each of such variations and/or modifications is deemed to be within the scope of the invent of embodiments described herein. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the inventive teachings is/are used. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific inventive embodiments described herein. It is, therefore, to be understood that the foregoing embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, inventive embodiments may be practiced otherwise than as specifically described and claimed. Inventive embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and/or methods, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, is included within the inventive scope of the present disclosure. 
     All definitions, as defined and used herein, should be understood to control over dictionary definitions, definitions in documents incorporated by reference, and/or ordinary meanings of the defined terms. The indefinite articles “a” and “an,” as used herein in the specification and in the claims, unless clearly indicated to the contrary, should be understood to mean “at least one.” The phrase “and/or,” as used herein in the specification and in the claims, should be understood to mean “either or both” of the elements so conjoined, i.e., elements that are conjunctively present in some cases and disjunctively present in other cases. 
     Multiple elements listed with “and/or” should be construed in the same fashion, i.e., “one or more” of the elements so conjoined. Other elements may optionally be present other than the elements specifically identified by the “and/or” clause, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, a reference to “A and/or B”, when used in conjunction with open-ended language such as “comprising” can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc. 
     As used herein in the specification and in the claims, “or” should be understood to have the same meaning as “and/or” as defined above. For example, when separating items in a list, “or” or “and/or” shall be interpreted as being inclusive, i.e., the inclusion of at least one, but also including more than one, of a number or list of elements, and, optionally, additional unlisted items. Only terms clearly indicated to the contrary, such as “only one of” or “exactly one of,” or, when used in the claims, “consisting of,” will refer to the inclusion of exactly one element of a number or list of elements. In general, the term “or” as used herein shall only be interpreted as indicating exclusive alternatives (i.e. “one or the other but not both”) when preceded by terms of exclusivity, such as “either,” “one of,” “only one of,” or “exactly one of” “Consisting essentially of,” when used in the claims, shall have its ordinary meaning as used in the field of patent law. 
     As used herein in the specification and in the claims, the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements. This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, “at least one of A and B” (or, equivalently, “at least one of A or B,” or, equivalently “at least one of A and/or B”) can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc. 
     It should also be understood that, unless clearly indicated to the contrary, in any methods claimed herein that include more than one step or act, the order of the steps or acts of the method is not necessarily limited to the order in which the steps or acts of the method are recited. 
     In the claims, as well as in the specification above, all transitional phrases such as “comprising,” “including,” “carrying,” “having,” “containing,” “involving,” “holding,” “composed of,” and the like are to be understood to be open-ended, i.e., to mean including but not limited to. Only the transitional phrases “consisting of” and “consisting essentially of” shall be closed or semi-closed transitional phrases, respectively, as set forth in the United States Patent Office Manual of Patent Examining Procedures. 
     The foregoing description of methods and embodiments has been presented for purposes of illustration. It is not intended to be exhaustive or to limit the invention to the precise steps and/or forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. It is intended that the scope of the invention and all equivalents be defined by the claims appended hereto.