Patent Publication Number: US-11391442-B2

Title: Polymer housing for a recessed lighting system and methods for using same

Description:
CROSS-REFERENCE TO RELATED PATENT APPLICATION(S) 
     This application is a bypass continuation application of International Application PCT/US2019/036477, filed Jun. 11, 2019, and entitled “A POLYMER HOUSING FOR A RECESSED LIGHTING SYSTEM AND METHODS FOR USING SAME,” which claims priority to U.S. Provisional Application No. 62/683,562, filed on Jun. 11, 2018, entitled “PLASTIC DEEP ELECTRICAL JUNCTION BOX,” U.S. Provisional Application No. 62/749,462, filed on Oct. 23, 2018, entitled “PLASTIC DEEP ELECTRICAL JUNCTION BOX,” and U.S. Provisional Application No. 62/791,398, filed on Jan. 11, 2019, entitled “PLASTIC DEEP ELECTRICAL JUNCTION BOX.” Each of the above identified applications is incorporated herein by reference in its entirety. 
    
    
     BACKGROUND 
     A recessed lighting system is a lighting device that is installed in an opening on a ceiling or a wall of a building structure in a manner that substantially hides the components of the lighting device (e.g., the housing, the wiring) from view. A typical recessed lighting system includes a light source and a driver deployed in at least one housing (e.g., a can housing, a junction box, or a combination of both). The housing may be coupled to a hanger bar assembly to facilitate installation of the recessed lighting system to various building structures such as a T-bar, a joist, and a stud. The housing may also include a feedthrough to facilitate connection to an external electrical power supply (e.g., an alternating current (AC) or direct current (DC) source in a building). A trim may also be used to cover the opening in the ceiling or the wall. The trim may be designed to modify the lighting in the environment and/or to accommodate aesthetic preferences. 
     SUMMARY 
     The Inventors, via previous innovative designs of lighting systems, have recognized and appreciated that recessed lighting offers several benefits for ambient and task lighting including, but not limited to making the environment appear larger (e.g., low ceiling environments), greater flexibility in tailoring lighting conditions (e.g., wall wash, directional, accent, general lighting), and fewer limitations on the installation location (e.g., a sloped ceiling, a vaulted ceiling, a wall). However, the Inventors have also recognized that previous recessed lighting systems are cumbersome to assemble. Furthermore, the Inventors have recognized previous recessed lighting systems may be expensive due to excessive use of expensive materials and labor costs associated with the manufacture, assembly, and installation of the lighting system. 
     Previous recessed lighting systems typically include one or more housings (e.g., a can housing, a junction box) to contain the light source and the driver. Additional components may be included such as a mounting pan, metallic conduits, and fittings, which increases the number of parts of the lighting system leading to higher manufacturing costs and a more complex assembly/installation procedure. 
     The housing(s) is typically formed from a sheet metal. Conventional sheet metal forming processes are limited in terms of fabricating parts with a variable thickness. Thus, the housing(s) typically do not include features to increase the structural rigidity (e.g., a rib, a gusset). Instead, the housing(s) are formed using a thicker material to provide a desired structural integrity at the expense of additional material costs. 
     Additionally, the recessed lighting system may have to meet certain safety standards (e.g., a fire-rating standard) to operate in the environment. For example, a fire-rating qualification may involve installing a recessed lighting system inside an enclosure (e.g., a fire-rated, thermally insulated enclosure). The enclosure not only increases the complexity of the installation, but also increases the overall size of the lighting system, thus limiting its use in confined spaces (e.g., a ceiling of a multi-family residential building). Alternatively, the housing(s) may be made thicker and/or coated to meet the safety standards, which may add additional costs. 
     The present disclosure is thus directed to various inventive implementations of a recessed lighting system that is simpler in design and easier to install compared to previous recessed lighting systems while maintaining or, in some instances, improving the mechanical, thermal, and electrical properties of the lighting system. The present disclosure is also directed to various inventive methods of assembling and installing the recessed lighting system described herein. 
     In one aspect, a housing of the lighting system may be formed from a polymer instead of a metal. A polymer-based housing may be lighter, more flexible in terms of design and manufacturability, and may more readily meet safety standards compared to a metal-based housing. For instance, the housing may be fabricated using injection molding techniques, which enables the integration of structural features to mechanically strengthen the housing (e.g., a rib structure, a section of the housing is thicker than another section). If such features are strategically incorporated into the housing, the housing may be fabricated using less without compromising the structural integrity of the housing. The housing described herein may also replace and/or eliminate several components in previous recessed lighting fixtures including, but not limited to a junction box, a can housing, a mounting pan, metallic conduits, and fittings, thus simplifying the manufacture and assembly of the lighting system. 
     In another aspect, the lighting system may include a yoke disposed in the cavity of the housing to facilitate the installation of a light module into the housing. The yoke may include a frame with a frame opening through which the light module is partially inserted. The frame may also include features (e.g., a tab with hole) to couple the yoke to the light module. The frame may also include one or more arms that each have a slot. Each arm may be coupled to the housing by inserting a peg, mounted to the housing, through the slot. The yoke may be slidably adjustable along the respective slots of each arm relative to the pegs. 
     For comparison, in previous housings, the user generally placed their hand inside the cavity of the housing, which may obstruct the user&#39;s view making installation more difficult and/or expose the user to safety hazards (e.g., electrical hazard, sharp features). The inclusion of a yoke may mitigate these issues by allowing a user to position the yoke near the opening of the housing or outside of the housing to provide the user a more accessible surface to mount the light module. The yoke may also be formed from a polymer or a metal. 
     In yet another aspect, the lighting system may include a partition plate disposed in a cavity of the housing to improve the ease of installation by pressing back wires/cables in the housing, which could otherwise obstruct or interfere with the installation of the light module and/or trim. The partition plate may divide the cavity into a wiring compartment and a lighting compartment. The wiring compartment may house one or more wires/cables in the housing to supply/transfer power from an external electrical power source or another recessed lighting system (e.g., a daisy-chained lighting fixture). The lighting compartment may be used to house a light module that includes the light source and the driver. The one or more wires/cables may be fed through a feedthrough in the partition plate to connect to the light module. The partition plate may be secured to the housing in a tool-less manner via a twist and lock connector. The partition plate may also be formed from a polymer or a metal. Furthermore, the partition plate may also reduce the risk of exposure to electrical safety hazards, increase the structural integrity of the housing, and increase heat dissipation from the light module. 
     In yet another aspect, the lighting system may include a trim to cover an exposed opening in the building structure through which the recessed lighting system is installed. The trim may be coupled to the light module in a tool-less manner, such as through use of a twist and lock connector. The trim may also be secured to the housing using various coupling mechanisms including, but not limited to a spring clip and a clamp. In this manner, the installation of the light module into the housing may be accomplished without the use of any tools, thus reducing the number of parts for installation as well as improving the overall ease of installation of the recessed lighting system. 
     In one example, a lighting system includes a housing with a sidewall that defines a cavity and an opening at a first end of the sidewall where the cavity contains a light source and a driver, a cover coupled to the sidewall to enclose a second end of the sidewall opposite from the first end, a knockout disposed on at least one of the sidewall or the cover that is removable in order to form a first opening through which a first cable passes through the first opening into the cavity, and a feedthrough tab disposed on at least one of the sidewall or the cover that is sufficiently compliant such that when bent, a second opening is formed through which a second cable passes through the second opening into the cavity. 
     In another example, a lighting system includes a housing with a sidewall that defines a cavity and an opening at a first end of the sidewall where the cavity contains a light source and a driver, a cover coupled to the sidewall to enclose a second end of the sidewall opposite to the sidewall, and a support section formed on the sidewall proximate to the cover and protruding into the cavity having a support surface to abut at least a portion of a partition plate disposed in the cavity such that a first plane coinciding with a flat side of the partition plate is substantially parallel to a second plane coinciding with the opening of the housing. 
     In yet another example, a lighting system includes a housing with a sidewall that defines a cavity and an opening at a first end of the sidewall, a cover coupled to the sidewall to enclose a second end of the sidewall opposite from the first end, a knockout disposed on at least one of the sidewall or the cover that is removable to form a first opening through which a conduit cable passes through the first opening into the cavity, a feedthrough tab disposed on at least one of the sidewall or the cover that is sufficiently compliant such that when bent, a second opening is formed through which a Romex cable passes through the second opening into the cavity, and a support section formed on the sidewall proximate to the cover and protruding into the cavity with a support surface. The lighting system also includes a partition plate disposed in the cavity such that the cavity is divided into a wiring compartment and a lighting compartment. The partition plate includes a base that abuts the support surface of the housing and a first twist and lock connector disposed around the periphery of the base. The lighting system also includes a peg coupled to the sidewall of the housing to engage the first twist and lock connector thereby coupling the partition plate to the housing, a light module disposed in the lighting compartment having a module housing that contains therein a light source and a driver, the module housing having a second twist and lock connector, and a trim to cover an environmental opening in a wall or a ceiling of a building where the recessed lighting system is disposed, the trim having a tab that engages the second twist and lock connector of the module housing thereby coupling the trim to the light module. The lighting system also includes a hanger bar assembly with a hanger bar holder coupled to the sidewall of the housing with a slot that allows the hanger bar assembly to be slidably adjustable along a first axis, the hanger bar holder having a track that defines a second axis, a hanger bar coupled to the track of the hanger bar holder that is slidably adjustable along the second axis, and a hanger bar head coupled to an end of the hanger bar to mount the hanger bar assembly to at least one of a T-bar, a joist, or a stud in the building. 
     In yet another example, a method of installing a lighting system includes the following steps: A) installing a housing by attaching a hanger bar assembly, coupled to the housing, to at least one of a T-bar, a stud, or a joist in a building, B) inserting a cable into a cavity of the housing through a first opening formed by at least one of B1) removing a knockout on the housing or B2) bending a feedthrough tab on the housing, C) inserting the cable through a feedthrough on a partition plate, and D) inserting the partition plate through a second opening of the housing and securing the partition plate to the housing. The method may further include the following steps: E) connecting the light module to the cable, F) coupling a trim to the light module, and G) inserting the light module and the trim through the second opening into the cavity of the housing, the trim having a coupling member to secure the light module and the trim to the housing, the light module being configured to emit light through the second opening. The method may alternatively include the following steps: H) coupling a stand-off to the partition plate and I) coupling a cover plate to the stand-off, the cover plate substantially covering the second opening of the housing. 
     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 
       The skilled artisan will understand that the drawings primarily are for illustrative purposes and are not intended to limit the scope of the inventive subject matter described herein. The drawings are not necessarily to scale; in some instances, various aspects of the inventive subject matter disclosed herein may be shown exaggerated or enlarged in the drawings to facilitate an understanding of different features. In the drawings, like reference characters generally refer to like features (e.g., functionally similar and/or structurally similar elements). 
         FIG. 1A  shows a top, front perspective view of an exemplary lighting fixture. 
         FIG. 1B  shows a cross-sectional front perspective view of the lighting fixture of  FIG. 1A  where a yoke is positioned near the cover of the housing. 
         FIG. 1C  shows a cross-sectional front perspective view of the lighting fixture of  FIG. 1B  where the yoke is positioned near the opening of the housing. 
         FIG. 1D-1  shows a cross-sectional top view of the lighting fixture of  FIG. 1A  where the trim is partially engaged with the light module. 
         FIG. 1D-2  shows a cross-sectional top, front perspective view of the lighting fixture of  FIG. 1D-1 . 
         FIG. 1E-1  shows a cross-sectional top view of the lighting fixture of  FIG. 1A  where a trim is fully engaged with a light module. 
         FIG. 1E-2  shows a cross-sectional top, front perspective view of the lighting fixture of  FIG. 1E-1 . 
         FIG. 2A  shows a top view of the junction box of  FIG. 1A . 
         FIG. 2B  shows a bottom view of the junction box of  FIG. 2A . 
         FIG. 2C  shows a right-side view of the junction box of  FIG. 2A , the left-side view being identical. 
         FIG. 2D  shows a front-side view of the junction box of  FIG. 2A , the rear-side view being identical. 
         FIG. 2E  shows a top, front perspective view of the junction box of  FIG. 2A . 
         FIG. 2F  shows a bottom, front perspective view of the junction box of  FIG. 2A . 
         FIG. 3A  shows a bottom view of the junction box of  FIG. 2A  with the yoke inserted into the junction box. 
         FIG. 3B  shows a bottom, front perspective view of the junction box of  FIG. 3A  where the yoke is at a fully recessed position. 
         FIG. 3C  shows a bottom, front perspective view of the junction box of  FIG. 3A  where the yoke is at a neutral position. 
         FIG. 3D-1  shows a cross-sectional view of the junction box of  FIG. 3A  where the yoke is at a neutral position. 
         FIG. 3D-2  shows a cross-sectional view of the junction box of  FIG. 3A  where the yoke is at a fully recessed position. 
         FIG. 4  shows an exploded view of another exemplary lighting fixture. 
         FIG. 5A  shows a top view of a junction box in the lighting fixture of  FIG. 4 . 
         FIG. 5B  shows a bottom view of the junction box of  FIG. 5A . 
         FIG. 5C  shows a right-side view of the junction box of  FIG. 5A , the left-side view being identical. 
         FIG. 5D  shows a front-side view of the junction box of  FIG. 5A , the rear-side view being identical. 
         FIG. 5E  shows a top, front perspective view of the junction box of  FIG. 5A . 
         FIG. 5F  shows a bottom, front perspective view of the junction box of  FIG. 5A . 
         FIG. 6A  shows a top view of a yoke in the lighting fixture of  FIG. 4 . 
         FIG. 6B  shows a bottom view of the yoke in  FIG. 6A . 
         FIG. 6C  shows a top, front perspective view of the yoke in  FIG. 6A . 
         FIG. 7A  shows a bottom view of the junction box of  FIG. 5A  with the yoke of  FIG. 6A  inserted into the junction box. 
         FIG. 7B  shows a bottom, front perspective view of the junction box of  FIG. 7A  where the yoke is at a fully recessed position. 
         FIG. 7C  shows a bottom, front perspective view of the junction box of  FIG. 7A  where the yoke is at a neutral position. 
         FIG. 8A  shows an exploded view of another exemplary lighting fixture. 
         FIG. 8B  shows a cross-sectional right perspective view of the lighting fixture of  FIG. 8A  where the lighting fixture is assembled. 
         FIG. 9A  shows a top view of a junction box in the lighting fixture of  FIG. 8A . 
         FIG. 9B  shows a bottom view of the junction box of  FIG. 9A . 
         FIG. 9C  shows a right-side view of the junction box of  FIG. 9A , the left-side view being identical. 
         FIG. 9D  shows a front-side view of the junction box of  FIG. 9A , the rear-side view being identical. 
         FIG. 9E  shows a top, front perspective view of the junction box of  FIG. 9A . 
         FIG. 9F  shows a bottom, front perspective view of the junction box of  FIG. 9A . 
         FIG. 10A  shows a top view of a partition plate in the lighting fixture of  FIG. 8A . 
         FIG. 10B  shows a bottom view of the partition plate in  FIG. 10A . 
         FIG. 10C  shows a top, front perspective view of the partition plate in  FIG. 10A . 
         FIG. 11A  shows a bottom view of the junction box of  FIG. 9A  with the partition plate of  FIG. 10A  inserted into the junction box. 
         FIG. 11B  shows a bottom, front perspective view of the junction box of  FIG. 11A  where the partition plate is at a fully locked position. 
         FIG. 12A  shows an exploded view of another exemplary lighting fixture. 
         FIG. 12B  shows a cross-sectional right perspective view of the lighting fixture of  FIG. 12A  where the lighting fixture is assembled. 
         FIG. 13A  shows a top view of a junction box in the lighting fixture of  FIG. 12A . 
         FIG. 13B  shows a bottom view of the junction box of  FIG. 13A . 
         FIG. 13C  shows a right-side view of the junction box of  FIG. 13A , the left-side view being identical. 
         FIG. 13D  shows a front-side view of the junction box of  FIG. 13A , the rear-side view being identical. 
         FIG. 13E  shows a top, front perspective view of the junction box of  FIG. 13A . 
         FIG. 13F  shows a bottom, front perspective view of the junction box of  FIG. 13A . 
         FIG. 14A  shows a top view of a partition plate in the lighting fixture of  FIG. 12A . 
         FIG. 14B  shows a bottom view of the partition plate in  FIG. 14A . 
         FIG. 14C  shows a top, front perspective view of the partition plate in  FIG. 14A . 
         FIG. 15A  shows a bottom view of the junction box of  FIG. 13A  with the partition plate of  FIG. 14A  inserted into the junction box. 
         FIG. 15B  shows a bottom, front perspective view of the junction box of  FIG. 15A  where the partition plate is at a fully locked position. 
         FIG. 16  shows a cross-sectional right perspective view of another exemplary lighting fixture. 
         FIG. 17A  shows a top view of a partition plate in the lighting fixture of  FIG. 16 . 
         FIG. 17B  shows a bottom view of the partition plate in  FIG. 17A . 
         FIG. 17C  shows a top, front perspective view of the partition plate in  FIG. 17A . 
         FIG. 17D  shows a bottom, front perspective view of the partition plate of  FIG. 17A . 
         FIG. 18A  shows a bottom view of the junction box of  FIG. 13A  with the partition plate of  FIG. 17A  inserted into the junction box. 
         FIG. 18B  shows a bottom, front perspective view of the junction box of  FIG. 18A  where the partition plate is at a fully locked position. 
         FIG. 19A  shows a bottom view of the junction box of  FIG. 13A  with the partition plate of  FIG. 17A  inserted into the junction box and a stand-off coupled to the partition plate. 
         FIG. 19B  shows a bottom, front perspective view of the junction box of  FIG. 19A  where the partition plate is at a fully locked position and the stand-off is coupled to the partition plate. 
         FIG. 19C  shows an exploded bottom, front perspective view of the junction box and the stand-off of  FIG. 19A . 
         FIG. 19D  shows a bottom, front perspective view of the junction box of  FIG. 19A  and a cover plate. 
     
    
    
     DETAILED DESCRIPTION 
     Following below are more detailed descriptions of various concepts related to, and implementations of, a recessed lighting system configured to be easier to install, simpler in terms of manufacturability, and meets desired mechanical, electrical, and thermal properties during operation. Specifically, a housing and components used to facilitate the installation of a light module in the housing are described herein. It should be appreciated that various concepts introduced above and discussed in greater detail below may be implemented in multiple ways. Examples of specific implementations and applications are provided primarily for illustrative purposes so as to enable those skilled in the art to practice the implementations and alternatives apparent to those skilled in the art. 
     The figures and example implementations described below are not meant to limit the scope of the present implementations to a single embodiment. Other implementations are possible by way of interchange of some or all of the described or illustrated elements. Moreover, where certain elements of the disclosed example implementations may be partially or fully implemented using known components, in some instances only those portions of such known components that are necessary for an understanding of the present implementations are described, and detailed descriptions of other portions of such known components are omitted so as not to obscure the present implementations. 
     In the discussion below, various examples of inventive recessed lighting systems are provided, wherein a given example or set of examples showcases one or more particular features of a housing, a yoke, and/or a partition plate. It should be appreciated that one or more features discussed in connection with a given example of a light module and a trim may be employed in other examples of recessed lighting systems according to the present disclosure, such that the various features disclosed herein may be readily combined in a given recessed lighting system according to the present disclosure (provided that respective features are not mutually inconsistent). 
     A First Example of a Recessed Lighting System with a Yoke 
       FIGS. 1A-1E  show several views of an exemplary recessed lighting system  1000   a  with a yoke  1400   a . As shown, the lighting system  1000   a  may include a housing  1100   a  with a cavity  1101  that contains a light module  1200  and a yoke  1400   a . The housing  1100   a  may include an opening  1103  for light from the light module  1200  to pass through into the environment. The light module  1200  may include a light source to emit light and a driver to supply power to the light source. Thus, the housing  1100   a  may replace the can housing and the junction box used in previous recessed lighting systems. The housing  1100   a  may also eliminate the use of a mounting pan and additional cables (e.g., metallic conduits) previously used to connect the junction box and the can housing. 
     Additionally, a trim  1300  may also be disposed, at least in part, onto the opening  1103  of the housing  1100   a  to cover a corresponding opening in the ceiling or wall of the building structure into which the recessed lighting system  1000   a  is installed. The recessed lighting system  1000   a  may be mounted to various structures in the building (e.g., a stud, a joist, a T-bar) via a hanger bar assembly (not shown). The hanger bar assembly may provide multiple axes of adjustment in order to position the recessed lighting system  1000   a  at a desired location relative to the structures supporting the recessed lighting system. An exemplary hanger bar assembly is described in further detail below with respect to other exemplary recessed lighting systems  1000  (e.g. recessed lighting systems  1000   a - 1000   e ). 
     As shown in  FIGS. 1B and 1C , the yoke  1400   a  is slidably adjustable along a slot  1422  on an arm  1420  of the yoke  1400   a . The slot  1422  of the yoke  1400   a  may thus define the limits in the position of the yoke  1400   a  relative to the housing  1100   a .  FIG. 1B  shows one exemplary limit where the yoke  1400   a  may be fully recessed into the cavity  1101  of the housing  1100   a  such that the light module  1200  and a portion of the trim  1300  is also contained in the cavity  1101  of the housing  1100   a .  FIG. 1C  shows another exemplary limit where the frame  1410  of the yoke  1400   a  abuts the opening  1103  of the housing  1100   a  for the user to more easily mount the light module  200  to the yoke  1400   a .  FIGS. 1D-1E  show the trim  1300  may be secured to the light module  1200  via at least one tab  1340  on the trim  1300  that engages a twist and lock connector  1222  on a module housing  1210  of the light module  1200 . In particular,  FIGS. 1D-1 and 1D-2  show cross-sectional views of the recessed lighting system  1000   a  where the tab  1340  of the trim  1300  is partially engaged with the twist and lock connector  1222  of the light module  1200 .  FIGS. 1E-1 and 1E-2  show cross-sectional views of the recessed lighting system  1000   a  where the tab  1340  of the trim  1300  if fully engaged with the twist and lock connector  1222  of the light module  1200 . 
     Generally, a method of installing the recessed lighting system  1000   a  may include the following steps: (1) installing the housing  1100   a  into the building structure using the hanger bar assembly, (2) removing a knockout  1140  and/or opening a feedthrough tab  1130  to pass a wire or cable that supplies electrical power to the light module  1200  into the cavity  1101  of the housing  1100   a , (3) configuring the wire/cable for connection (e.g., attaching a connector, connecting a ground wire to an electrical ground), (4) electrically coupling the light module  1200  to the wire/cable, (5) mounting the light module  1200  to the frame  1410  of the yoke  1400   a , (6) mounting the trim  1300  to the light module  1200 , (7) inserting the light module  1200 , trim  1300 , and yoke  1400   a  into the cavity  1101  of the housing  1100   a  along the axis defined by the slot  1422  on the arm  1420  of the yoke  1400   a . The trim  1300  may include a coupling mechanism, such as a friction spring clip, to secure the light module  1200 , trim  1300 , and yoke  1400   a  to the housing  1100   a.    
       FIGS. 2A-2F  show several exemplary views of the housing  1100   a . As shown, the housing  1100   a  may include a sidewall  1102  that defines and substantially surrounds a cavity  1101 . The sidewall  1102  may have an opening  1103  through which light from the light module  1200  exits the recessed lighting system  1000   a  into the environment. The sidewall  1102  may also include a cover  1120  to partially enclose the housing  1100   a . As shown in  FIGS. 2A-2F , the sidewall  1102  may define a radially symmetric cavity  1101  along a linear axis. It should be appreciated that the housing  1100   a  in other implementations may define an asymmetric cavity  1101 . The cover  1120  may thus be disposed at an opposing end of the sidewall  1102  from the opening  1103 . In some implementations, the cover  1120  and the sidewall  1102  may be formed as a single component to reduce the number of manufacturing steps and to simplify assembly. In some implementations, the cover  1120  and the sidewall  1102  may be an assembly of multiple components that are coupled together using various coupling mechanisms including, but not limited to a snap fit, a fastener, a clip, and a clamp. Fabricating the cover  1120  and the sidewall  1102  separately may simplify manufacture by simplifying the complexity of the parts being fabricated. 
     The sidewall  1102  and the cavity  1101  may generally have various cross-sectional shapes including, but not limited to a circle, an ellipse, a regular polygon (e.g., a polygon where the sides are equal in length), and an irregular polygon (e.g., a polygon where the sides are not equal in length). In one example, the sidewall  1102  and the cavity  1101  may have a circular cross-section, which may reduce the size of the flange  1320  on the trim  1300  to cover the opening  1103  of the housing  1100   a . In another example, the sidewall  1102  may have an irregular octagonal cross-section such that the shape of the housing  1100   a  may appear as a tapered square (e.g., a square with chamfered or beveled corners). In some implementations, the cross-sectional shape of the sidewall  1102  and/or the cavity  1101  may vary along an axis orthogonal to the opening  1103  or between the cover  1120  and the opening  1103  (e.g., along the length of the sidewall  1102 ). For example, the cross-sectional shape of the sidewall  1102  may be polygonal near the cover  1120  and cylindrical near the opening  1103 . Additionally, the housing  1100   a  and the cavity  1101  may have a similar shape (e.g., the sidewall  1102  is substantially uniform) or a dissimilar shape (e.g., the sidewall  1102  is substantially non-uniform). For example, the sidewall  1102  and the cavity  1101  of the housing  1100   a  in  FIGS. 2A-2F  may both have a cross-sectional shape that is cylindrical. In another example, the sidewall  1102  may be polygonal and the cavity  1101  is cylindrical. This may result in a sidewall  1102  with a variable thickness. Furthermore, the cover  1120  may have a shape substantially similar to the cross-sectional shape of the sidewall  1102  (e.g., the circular cover  1120  and the circular sidewall  1102  shown in  FIGS. 2A-2F ) or a shape that is dissimilar to the sidewall  1102  (e.g., a circular cover  1120  and a polygonal sidewall  1102  such that the cover  1120  has an overhanging portion). 
     The housing  1100   a  may also include a bevel and/or a chamfer between the cover  1120  and the sidewall  1102  to reduce the amount of material used, the presence of sharp corners for safety and wear resistance, and/or to improve manufacturability. The housing  1100   a  may also incorporate structural features to increase the structural rigidity of the housing  1100   a . For example,  FIG. 2E  shows the sidewall  1102  include mounting sections  1104  and  1108  to facilitate coupling to a hanger bar assembly and the yoke  1400   a , respectively. These sections  1104  and  1108  may be made thicker than other portions of the sidewall  1102  to increase the structural rigidity of the sidewall. Additionally, the housing  1100   a  may have a rim  1109  at the opening  1103  to also increase structural rigidity. 
     In some implementations, the housing  1100   a  may be dimensioned to accommodate the light module  1200  and wires/cables that supply or transfer electrical power to or from the recessed lighting system  1000   a . For instance, the housing  1100   a  may have a depth of up to about 4 inches and a width (or a diameter) ranging between about 2 inches and about 6 inches. The housing  1100   a  may also be dimensioned such that the cavity  1101  has sufficient volume to contain multiple wires/cables with a gauge at least about 12 or greater (e.g., a higher gauge corresponds to a smaller sized wire/cable). For example, the cavity  1101  may provide sufficient room to contain eight 12 gauge wires/cables to daisy-chain the recessed lighting system  1000   a  with another lighting system in the environment (e.g., another recessed lighting system  1000   a ). Said in another way, a portion of the cavity  1101  of the housing  1100   a  may be dedicated to house wires/cables with a corresponding volume similar to previous electrical junction boxes (e.g., between about 15 cubic inches to about 30 cubic inches). Additionally, the housing  1100   a  may have sufficient volume to contain therein the light module  1200  and at least a portion of the trim  1300 . 
     The housing  1100   a  may also include several features to facilitate assembly with other components of the recessed lighting system  1000   a . For example, the housing  1100   a  may include a knockout  1140 , which is a removable portion of the housing  1100   a  that creates an opening for a wire/cable, such as a conduit cable (e.g., a metallic sheathed cable) to enter or exit the cavity  1101  of the housing  1100   a .  FIGS. 2A and 2E  show the cover  1120  of the housing  1100   a  may include multiple knockouts  1140 . As shown, the knockouts  1140  may vary in size and shape. Furthermore, the knockout  1140  may have multiple removable portions (e.g., a central portion and an annular portion) to allow the user to progressively enlarge the opening. Although  FIGS. 2A and 2E  show the knockouts  1140  are only on the cover  1120 , it should be appreciated the knockout  1140  may also be disposed on other portions of the housing  1100   a  (e.g., the sidewall  1102 ). In some implementations, the knockout  1140  may satisfy a pull force specification for a conduit cable set forth by the National Electric Code (NEC). 
     In another example, the housing  1100   a  may include a feedthrough tab  1130  to facilitate entry of a wire/cable, such as a Romex cable (i.e., a non-metallic sheathed cable). Unlike the knockout  1140  described above, the feedthrough tab  1130  may be a non-removable, compliant feature that allows a user to form an opening by bending the feedthrough tab  1130  into the cavity  1101  of the housing  1100   a .  FIGS. 2A-2E  show several exemplary feedthrough tabs  1130  disposed on the beveled portion of the housing  1100   a  between the sidewall  1102  and the cover  1120 . In some implementations, the feedthrough tab  1130  may allow a user to open and close openings in the housing  1100   a  by bending the feedthrough tab  1130  into and out of the cavity  1101 . The portion of the feedthrough tab  1130  that attaches to the sidewall  1102  may also be prestressed during manufacture such that a restraining force is applied to the wire/cable, thus holding the wire/cable in place in the housing  1100   a  after installation. If a wire/cable is subsequently removed from the housing  1100   a , the restraining force may cause the feedthrough tab  1130  to return to its original closed position. In some implementations, the feedthrough tab  1130  may satisfy a pull force specification for a Romex cable set forth by the National Electric Code (NEC). 
     It should be appreciated the wire/cable (e.g., the conduit cable, the Romex cable) supplying electrical power to the recessed lighting system  1000   a  may be an alternating current (AC) source or a direct current source (DC). It should also be appreciated the wire/cable may originate from an electric power supply in the building structure or from another recessed lighting system  1000   a  in a daisy-chaining configuration. 
     The housing  1100   a  may also include structural features to couple the yoke  1400   a  to the housing  1100   a . For example,  FIGS. 2C, 2E, and 2F  show the housing  1100   a  includes the mounting section  1108 , which protrudes outwards from the sidewall  1102 . The mounting section  1108  may be protruded in order to define a corresponding recess in the cavity  1101  that mechanically guides the arm  1420  of the yoke  1400   a  as the yoke  1400   a  slides along the slot  1422 . The mounting section  1108  may also include an opening  1110  to receive a coupling member (not shown) that passes, at least partially, through the opening  1110 . The coupling member may be inserted into the slot  1422  of the arm  1420  of the yoke  1400   a  to constrain and guide the yoke  1400   a . The coupling member may be various type of coupling mechanisms including, but not limited to a peg, a screw fastener, a bolt fastener, a dowel, and a rod. In some implementations, the coupling member may be tightened (e.g., via a nut, a thumbscrew, a butterfly wing screw) to secure the yoke  1400   a  to the housing  1100   a  at a particular position along the slot  1422 . In some implementations, the coupling member may not secure the yoke  1400   a  to the housing  1100   a , but instead may only guide the yoke  1400   a . In such designs, another mechanism (e.g., a friction spring clip on the trim  1300 ) may be used to secure the yoke  1400   a  (along with the light module  1200  and the trim  1300 ) to the housing  1100   a.    
     The housing  1100   a  may also include structural features to couple the hanger bar assembly to the housing  1100   a . For example,  FIGS. 2D, 2E, and 2F  show the housing  1100   a  includes the mounting section  1104 , which protrudes outwards from the sidewall  1102  to provide a surface against which a hanger bar holder of the hanger bar assembly may be mounted to the housing  1100   a . The mounting section  1104  may include an opening  1106  to couple the hanger bar holder to the housing  1100   a  via a coupling member (not shown). The coupling member may again be various type of coupling mechanisms including, but not limited to a screw fastener, a bolt fastener, and a snap fit. As will be described in further detail below, the position of the hanger bar assembly relative to the housing  1100   a  may be adjustable to accommodate different building structures (e.g., the spacing and orientation between neighboring studs may vary) in the environment. 
     The housing  1100   a  may also be configured to satisfy one or more safety standards related to various properties of the recessed lighting system  1000   a  including, but not limited to fire resistance, sound attenuation, air tightness, concrete tightness, structural rigidity, and water resistance. For example, the housing  1100   a  may be qualified as a luminaire fixture and/or a junction box based on the specifications set forth by the NEC and/or the Underwriter&#39;s Laboratory (UL). For instance, the housing  1100   a  may be qualified as a junction box if the housing  1100   a  satisfies UL514C, which is the UL standard for nonmetallic outlet boxes, flush-device boxes, and covers. The housing  1100   a  may be qualified as a luminaire fixture if the housing  1100   a  satisfies UL1598, which is the UL standard for luminaires. 
     The housing  1100   a  may generally be fire-rated or non-fire-rated depending on the material used to form the housing  1100   a  and the gage or thickness of the housing  1100   a . In terms of safety standards, the housing  1100   a  may be fire-rated if the housing  1100   a  satisfies UL263, which is the UL standard for fire tests of building construction and materials, or the standards set forth by the American Society for Testing and Materials (ASTM) and/or the National Fire Protection Association (NFPA). For instance, the housing  1100   a  may have an hourly rating (e.g., 1 hour, 2 hour) and a location rating (e.g., floor, wall, ceiling) based on where the recessed lighting system  1000   a  is installed in the environment. 
     As described above, the housing  1100   a  may also incorporate structural features to improve the structural rigidity of the housing  1100   a . The design of such features may be based, in part, on structural rigidity specifications set forth by the NEC and/or the UL (e.g., UL 1598, UL 541C) for a junction box and a luminaire fixture. The housing  1100   a  may also be insulation contact (IC) rated, which allows insulation in a wall or a ceiling to physically contact the housing  1100   a . An IC rated housing  1100   a  may enable the recessed lighting system  1000   a  to be installed without use of a separate enclosure unlike non-IC rated recessed lighting systems. The housing  1100   a  may also meet air tightness standards (e.g., ASTM E283 certification) to increase the energy efficiency of a building by reducing air leaks between an interior environment and an exterior environment that may otherwise compromise the thermal insulation of the building. The housing  1100   a  may also meet sound ratings according to the specifications set forth by the Sound Transmission Class (STC) and/or the Impact Insulation Class (IIC). 
     It should be appreciated the safety standards cited herein are exemplary. The recessed lighting system  1000   a  may generally satisfy similar and/or equivalent safety standards from other organizations and/or associations, which may vary by municipality, county, state, province, or country. Furthermore, the recessed lighting system  1000   a  may satisfy the specifications set forth by safety standards as they are modified and/or updated over time. 
     The housing  1100   a  may be formed from various thermoplastic and thermosetting polymers including, but not limited to polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, and polystyrene. The housing  1100   a  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, and blow molding. 
     As described above, the yoke  1400   a  may be used to facilitate the installation of the light module  1200  into the housing  1100   a  by providing a user a more accessible surface to mount the light module  1200  to the housing  1100   a . In some implementations, the yoke  1400   a  may not be removable from the housing  1100   a  once the coupling member is inserted into the opening  1106  of the mounting section  1104  through the slot  1422 . In this manner, the yoke  1400   a  may also function as a safety feature of the recessed lighting system  1000   a  by preventing the light module  1200  from inadvertently falling out of the cavity  1101  of the housing  1100   a . In some implementations, the yoke  1400   a  may also allow the light module  1200  to be tilted within the cavity  1101  of the housing  1100   a  in order to adjust the direction of the light from the light module  1200  into the environment. For example, the coupling member in the opening  1106  may function as a pivot, allowing the yoke  1400   a  to rotate about the coupling member. The orientation of the light module  1200  may be maintained by tightening the coupling member to secure the yoke  1400   a  to the housing  1100   a  and/or using a trim  1300  with an opening  1310  shaped to support the tilted orientation of the light module  1200 . 
     The yoke  1400   a  may include a frame  1410  that defines a frame opening  1430 . The frame  1410  and the frame opening  1430  may have various shapes including, but not limited to a circle, an ellipse, a regular polygon, and an irregular polygon. In some implementations, the frame  1410  may have an irregular thickness such that the exterior shape of the frame  1410  and the frame opening  1430  are different. For example, the exterior shape of the frame  1410  may be polygonal and the frame opening  1430  may be circular. In some implementations, the exterior shape of the frame  1410  may correspond to the shape of the cavity  1101  of the housing  1100   a  and the shape of the frame opening  1430  may correspond to the shape of the module housing  1210  of the light module  1200 . In this manner, the frame  1410  may substantially enclose a portion of the cavity  1101  of the housing  1100   a  when the light module  1200  is installed. Furthermore, the frame  1410  may be shaped to abut against a portion of the module housing  1210 . 
     The frame  1410  may also include various coupling mechanisms to couple the light module  1200  to the yoke  1400   a  including, but not limited to a screw fastener, a bolt fastener, and a snap fit connector.  FIGS. 3A-3C  show several views of an exemplary yoke  1400   a  deployed in the housing  1100   a . As shown, the yoke  1400   a  may include a tab  1412  that extends into the frame opening  1430 . The tab  1412  may be used to define an opening  1414  where a fastener may be inserted through the opening  1414  to couple the yoke  1400   a  to the module housing  1210 . As shown, the yoke  1400   a  may include multiple openings  1414  arranged to match corresponding openings on the module housing  1210  for assembly. The frame opening  1430  may also be dimensioned such that the light module  1200  is at least partially inserted through the frame opening  1430 . For instance,  FIGS. 1B and 1C  show the module housing  1210  is partially inserted through the frame opening  1430  such that a flange  1220  on the module housing  1210  abuts the frame  1410 . The flange  1220  may include through hole openings  1224  aligned to the openings  1414 , which in this case may be threaded to secure respective fasteners. 
     The yoke  1400   a  may also include an arm  1420  attached to the frame  1410 . The arm  1420  may protrude from the frame  1410  along an axis substantially orthogonal to a plane coincident with the frame opening  1430 . For example, the yoke  1400   a  depicted in  FIGS. 3B-3D-2  has a flat, circular frame  1410 . Thus, a plane may be defined based on the frame opening  1430  that is substantially parallel to the opening  1103  of the housing  1100   a . The arm  1420  may protrude along an axis normal to the plane. Said in another way, the arm  1420  may include a proximal end coupled to the frame  1410  and a distal end that is positioned some distance (e.g., the length of the arm  1420 ) from the proximal end. The linear axis defined between the proximal end and the distal end may be normal to the plane defined by the frame opening  1430 . 
     The arm  1420  may also include a slot  1422  that runs along the length of the arm  1420 . The slot  1422 , as described above, may define the translational axis along which the yoke  1400   a  is slidably adjustable. The length of the slot  1422  may determine the range of translational motion of the yoke  1400   a  with respect to the housing  1100   a . The position of the slot  1422  in relation to the arm  1420  and the opening  1106  may determine the available positions of the yoke  1400   a  within the cavity  1101  of the housing  1100   a . For example,  FIGS. 3C and 3D-1  show the yoke  1400   a  may be configured such that at one limit, the frame  1410  of the yoke  1400   a  abuts the opening  1103  of the housing  1100   a  such that the frame  1410  does not extend beyond the opening  1103 .  FIGS. 3B and 3D-2  show another limit where the distal end of the arms  1420  are proximate to the cover  1120  of the housing  1100   a . The width of the slot  1422  may correspond to the size of the opening  1110  and/or the size of the coupling member mounted to the opening  1110 . 
     The yoke  1400   a  may be formed from various metals, thermoplastic polymers, and thermosetting polymers including, but not limited to aluminum, steel, stainless steel, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), and polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. The yoke  1400   a  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, blow molding, casting, and machining. 
     The light module  1200  may include the module housing  1210 , which defines a cavity  1101  that contains various components of the light module  1200  including the light source and the driver. The light source emits light and the driver is used to supply and regulate electrical power to the light source. In some implementations, the module housing  1210  may also house various optical elements that modify the spatial and angular distribution of the light outputted from the light source including, but not limited to a reflector, a lens, a diffuser, and a protective cover. 
     The module housing  1210  may thus be an enclosure with an opening that outputs light from the light source. The module housing  1210  may include a plurality of fins to facilitate convective cooling. The module housing  1210  may also include a flange  1220  defined along the periphery of the opening of the module housing  1210 . The flange  1220  may abut the frame  1410  as shown in  FIGS. 1B and 1C . The flange  1220  may also contain various structural features to couple the light module  1200  to the yoke  1400   a  and/or the trim  1300 . For example,  FIGS. 1D-1-1E-2  show the flange  1220  may include a twist and lock connector  1222  to connect to a tab  1340  on the trim  1300 . As described above, the flange  1220  may also include openings  1224  that align with the openings  1414  on the frame  1410  of the yoke  1400   a.    
     The module housing  1210  may also be used to dissipate heat generated by the light source. In cases where insulation in the building structure substantially covers the housing  1100   a , the heat may be dissipated along several paths including: (1) from the module housing  1210  directly to the environment via convective cooling and/or (2) from the module housing  1210  to the trim  1300  via heat conduction and then to the environment via convective cooling. If the recessed lighting system  1000   a  is deployed in a building structure with open space around the housing  1100   a , heat may also be dissipated along a path (3) from the housing  1100   a  to the open space via convection. 
     The module housing  1210  may be formed from a combination of various metals and polymers including, but not limited to aluminum, steel, stainless steel, copper, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. In some implementations, the module housing  1210  may be formed via an overmolding process where a portion of the module housing  1210  made of a first material (e.g., a metal) is then covered by a second material (e.g., a polymer) to form a unitary component. 
     Exemplary implementations of the light module  1200  may also be found in PCT Application PCT/US19/32281, filed May 14, 2019 and entitled, “LIGHTING MODULE HAVING INTEGRATED ELECTRICAL CONNECTOR,” which is incorporated by reference herein in its entirety. 
     The trim  1300  may be used to cover the opening  1103  of the housing  1100   a  and an opening in a ceiling or a wall on the building structure where the recessed lighting system  1000   a  is installed. As shown in  FIGS. 1A-1C , the trim  1300  may include an opening  1310  where light from the light module  1200  exits the recessed lighting system  1000   a  and into the environment. The trim  1300  may also include a flange  1320  disposed along the periphery of the opening  1310  shaped to cover the opening of the ceiling or wall. The opening  1310  may be tapered such that the opening  1310  is conical in shape (e.g., frusto-conical). The flange  1320  and the cross-sectional shape of the opening  1310  may have various shapes including, but not limited to a circle, an ellipse, a regular polygon, and an irregular polygon. 
     The trim  1300  may also include various features to couple the trim  1300  to the light module  1200  and/or the housing  1100   a . For example, the trim  1300  may include tabs  1340  that engage with the twist and lock connector  1222  of the light module  1200 . The trim  1300  may also include a coupling member  1330  to couple the trim  1300  to the sidewall  1102  of the housing  1100   a  in the cavity  1101 . The coupling member  1330  may be various coupling mechanisms including, but not limited to a friction clip, a spring clip, and a snap fit connector. For example,  FIG. 1C  shows an exemplary trim  1300  where the coupling member  1330  is a friction clip. 
     In some implementations, the trim  1300  may be rotatably adjustable relative to the light module  1200  and the housing  1100   a . For example, the twist and lock connector  1222  of the module housing  1210  may include a flat ridge that extends around a portion of the flange  1220  such that the tab  1340  of the trim  1300  may be supported at any position along the ridge. In this manner, the orientation of the trim  1300  may be adjusted to meet user preferences. For example, the trim  1300  may have a square-shaped flange  1320 , thus rotating the trim  1300  may allow the recessed lighting system  1000   a  to adhere to a desired aesthetic in the environment or to match the orientation of another recessed lighting system  1000   a  in the environment. In another example, the trim  1300  may be configured for wall washing (e.g., lighting a flat wall), thus rotatable adjustment of the trim  1300  may allow a user to illuminate a particular portion of the wall or an object as desired. Once the desired orientation of the trim  1300  is set, the trim  1300  may be inserted and secured to the housing  1100   a  (along with the light module  1200  and the yoke  1400   a ) by the coupling member  1330  to maintain the orientation. 
     The trim  1300  may be formed from various metals and polymers including, but not limited to aluminum, steel, stainless steel, copper, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. 
     A Second Example of a Recessed Lighting System with a Yoke 
       FIG. 4  shows another exemplary implementation of a recessed lighting system  1000   b  with a yoke  1400   b . As before, the recessed lighting system  1000   b  may include a housing  1100   b  to cover and support the various components of the recessed lighting system  1000   b . For instance, a yoke  1400   b  may be inserted into the cavity  1101  of the housing  1100   b . The yoke  1400   b  may be used to facilitate the installation of a light module  1200 . A trim  1300  may also be mounted to the light module  1200 . The trim  1300  may further include a coupling member  1330  to secure the assembly of the yoke  1400   b , the light module  1200 , and the trim  1300  to the housing  1100   b .  FIG. 4  also shows a hanger bar assembly  1600  may be mounted to the sidewall  1102  of the housing  1100   b  for installation onto a building structure (e.g., a T-bar, a joist, a stud). 
     A method of installing the recessed lighting system  1000   b  depicted in  FIG. 4  may be substantially similar to the method described above for the recessed lighting system  1000   a . The various components of the recessed lighting system  1000   b  shown in  FIG. 4 , in particular the housing  1100   b  and the yoke  1400   b , may include additional structural features to further improve the ease of installing the recessed lighting system  1000   b.    
       FIGS. 5A-5F  show several views of the housing  1100   b . The housing  1100   b  may generally include the same features as described above and below with respect to the other exemplary recessed lighting systems  1000 . Additionally, the housing  1100   b  may also include a guide  1160  disposed on the sidewall of the housing  1100   b . The guide  1160  may be used to facilitate the alignment and adjustment of a hanger bar holder  1610  in the hanger bar assembly  1600 . For example, the guide  1160  may be a protrusion from the sidewall  1102  that abuts against a portion of the hanger bar holder  1610 , thus constraining the motion of the hanger bar assembly  1600  along a preferred adjustment axis between the hanger bar holder  1610  and the housing  1100   b . For example, the position of the hanger bar holder  1610  along the length of the sidewall  1102  may be adjustable. Thus, the guide  1160  may limit the lateral movement of the hanger bar holder  1610 . 
     The housing  1100   b  may generally include one or more guides  1160 . For example,  FIGS. 5A-5F  show the housing  1100   b  includes two pairs of guides  1160 . Each pair of guides  1160   a  and  1160   b  may be used on opposing sides of the hanger bar holder  1610 . The guide  1160  may generally span a portion of the sidewall  1102  (e.g., from the cover  1120  to the opening  1103 ). In some implementations, the guide  1160  may also be segmented to reduce the amount of material used during fabrication of the housing  1100   b.    
     The housing  1100   b  may also include a reinforcing section  1122  on the cover  1120 . As shown in  FIGS. 5B and 5F , the reinforcing section  1122  may be a protrusion that extends into the cavity  1101  of the housing  1100   b . The reinforcing section  1122  may be used to increase the structural rigidity of the housing  1100   b , especially if one or more knockouts  1140  are removed during installation. As shown, the reinforcing section  1122  may partially surround the respective knockouts  1140  on the cover  1120  for this purpose. 
     The housing  1100   b  may also include knockouts  1140  and feedthrough tabs  1130  to facilitate entry of a wire/cable into the cavity  1101  of the housing  1100   b  as described above. The feedthrough tab  1130  on the housing  1100   b  may include mechanical stops  1132  as shown in  FIGS. 5B and 5F . The mechanical stops  1132  may be used to limit how far the feedthrough tab  1130  is bent into the cavity  1101  of the housing  1100   b . For example, the mechanical stops  1132  depicted in  FIGS. 5B and 5F  include a first portion on the feedthrough tab  1130  and a second portion at the base of the feedthrough tab  1130 . As the feedthrough tab  1130  is bent into the cavity  1101 , the first portion may physically contact the second portion thus preventing the feedthrough tab  1130  from being bent further inwards. 
     As before, the housing  1100   b  may be formed from various thermoplastic and thermosetting polymers including, but not limited to polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, and polystyrene. The housing  1100   b  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, and blow molding. 
       FIGS. 6A-6C  show several views of the yoke  1400   b . The yoke  1400   b  may include the same features as the yoke  1400   a  described above with respect to the other exemplary recessed lighting fixtures  1000 . As shown in  FIG. 6C , the openings  1414  of the yoke  1400   b  may include an extended section that protrudes from the frame  1410 . This section may be used to increase the length of the opening  1414  in order to support a longer fastener. In some implementations, the opening  1414  may be threaded, thus the extended section may provide additional threads to engage with a fastener to better secure the light module  1200  to the yoke  1400   b.    
     The arm  1420  of the yoke  1400   b  may include a slot  1422 , as described above, to allow slidable adjustment of the yoke  1400   b  along an axis defined by the slot  1422 . The slot  1422  may generally have a non-uniform width. For example,  FIGS. 6A-6C  show the slot  1422  having a choke  1423  (e.g., a section with a narrower width). If the width of the slot  1422  is based on the size of the coupling member used to couple and guide the yoke  1400   b  to the housing  1100   b , the choke  1423  may be used to define a separate section of the slot  1422  where the yoke  1400   b  may be rigidly fixed to the coupling member, thus preventing the yoke  1400   b  from sliding relative to the housing  1100   b . For the arm  1420  depicted in  FIG. 6C , a user may pull the yoke  1400   b  out of the housing  1100   b  such that the coupling member is forced past the choke  1423 , thus rigidly securing the yoke  1400   b  to the housing  1100   b . This may allow a user to more easily mount the light module  1200  to the yoke  1400   b  by preventing the yoke  1400   b  from sliding along the slot  1422  as the user is coupling a fastener through the openings  1224  of the module housing  1210  and the openings  1414  of the yoke  1400   b . It should be appreciated the arm  1420  may be sufficiently compliant to allow the coupling member to move past the choke  1423  without causing plastic deformation. 
       FIGS. 7A-7C  show several views of the yoke  1400   b  disposed in the cavity  1101  of the housing  1100   b . As before, the position and the length of the slot  1422  may define the positional limits of the yoke  1400   b  within the housing  1100   b .  FIG. 7B  shows that at one limit, the arm  1420  of the yoke  1400   b  may be positioned proximate to the cover  1120  of the housing  1100   b  such that the light module  1200  is fully contained inside the cavity  1101  of the housing  1100   b .  FIG. 7C  shows that at another limit, the frame  1410  of the yoke  1400   b  may abut the opening  1103  of the housing  1100   b.    
     The hanger bar assembly  1600  shown in  FIG. 4  may include a hanger bar holder  1610  to mount the hanger bar assembly  1600  to the housing  1100   b , a hanger bar  1620  to adjust a position of the housing  1100   b  in the building structure, and a hanger bar head  1630  to mount the hanger bar assembly  1600  to the building structure (e.g., a T-bar, a joist, a stud). As shown, the hanger bar holder  1610  may include a frame  1611  that abuts against the sidewall  1102  of the housing  1100   b . The frame  1611  may be shaped to fit between the guides  1160  on the sidewall housing  1100   b  thereby constraining and guiding the adjustment of the hanger bar holder  1610  along a desired adjustment axis while limiting unwanted motion along other axes. 
     The frame  1611  may include an adjustment feature that allows the position of the hanger bar assembly  1600  to be adjustable with respect to the housing  1100   b . For example,  FIG. 4  shows the adjustment feature as a slot  1612  where the hanger bar assembly  1600  is slidably adjustable along an axis defined by said slot  1612 . The hanger bar holder  1610  may be coupled to the housing  1100   b  via a coupling member  1614  to the opening  1106  on the housing  1100   b . The coupling member  1614  may be various coupling mechanisms including, but not limited to a screw fastener, a bolt fastener, a butterfly wing screw, and a thumbscrew. 
     The hanger bar holder  1610  may also include a track  1616  coupled to the frame  1611  to support and guide one or more hanger bars  1620 . The track  1616  may constrain the hanger bars  1620  to move along an axis substantially orthogonal to the axis defined by the slot  1612 , thus enabling the hanger bar assembly  1600  to be adjustable along multiple axes. In some implementations, the track  1616  may support two telescoping hanger bars  1620  in a manner that reduces unwanted lateral motion of the hanger bars  1620  along other axes orthogonal to the second axis. For example, the track  1616  may be shaped and/or tolerances such that the hanger bars  1620  are in contact with the track  1616 , thus preventing the unwanted lateral motion (e.g., slop, backlash) between the hanger bars  1620  and the track  1616 . The frame  1611  may also include a locking tab  1618  to secure the one or more hanger bars  1620  to a desired position during installation. 
     The hanger bar  1620  may be an elongated rail that is slidably adjustable along the track  1616  of the hanger bar holder  1610 . In some implementations, the hanger bar  1620  may have a substantially uniform cross-sectional shape along the length of the hanger bar  1620 . The cross-sectional shape may be configured to allow the hanger bar  1620  to be telescopically adjustable with respect to another hanger bar  1620 . The cross-sectional shape of the hanger bar  1620  may also be configured to reduce unwanted lateral motion between adjoining hanger bars  1620 . For example, the cross-sectional shape of the hanger bar  1620  may ensure the hanger bar  1620  maintains physical contact with another hanger bar  1620 , thus limiting any unwanted backlash or slop between the hanger bars  1620 . In some implementations, the pair of hanger bars  1620  supported by the hanger bar holder  1610  may be substantially identical to simplify manufacture. 
     The hanger bar head  1630  may be disposed at one end of the hanger bar  1620 . The hanger bar head  1630  may include multiple features to facilitate attachment to various building structures including, but not limited to a T-bar, a joist, and a stud. The hanger bar head  1630  may couple to the building structure using various coupling mechanisms including, but not limited to a screw fastener, a bolt fastener, a snap fit connector, and an adhesive. 
     A First Example of a Recessed Lighting System with a Partition Plate 
       FIGS. 8A and 8B  show several views of an exemplary recessed lighting system  1000   c  with a partition plate  1500   a . As shown, the recessed lighting system  1000   c  may include a housing  1100   c . The partition plate  1500   a  may be inserted into the cavity  1101  of the housing  1100   c  and secured to the sidewall  1102  to divide the cavity  1101  into a wiring compartment  1105  and a lighting compartment  1107 . Once the partition plate  1500   a  is secured to the housing  1100   c , a light module  1200  and a trim  1300  may be inserted into the lighting compartment  1107  and secured by a coupling member on the trim  1300 . As before, a hanger bar assembly  1600  may be coupled to the sidewall  1102  of the housing  1100   c  to facilitate installation of the recessed lighting system  1000   c  onto a building structure. 
     The partition plate  1500   a  may be used to improve the ease of installing the light module  1200  and the trim  1300  by pushing the wires/cables disposed in the housing  1100   c  back, thus reducing their interference and/or obstruction of the housing  1100   c  when mounting the light module  1200  and the trim  1300 . As shown in  FIG. 8B , the partition plate  1500   a  and the light module  1200  may be positioned in the cavity  1101  of the housing  1100   c  such that a gap exists between the partition plate  1500   a  and the module housing  1210  of the light module  1200 . In some implementations, the module housing  1210  or another portion of the light module  1200  may directly contact the partition plate  1500   a . The partition plate  1500   a  may also be used to increase the structural rigidity of the housing  1100   c  by reinforcing the sidewall  1102 . In this manner, the partition plate  1500   a  may also improve the thermal performance of the housing  1100   c  when the recessed lighting system  1000   c  is subjected to a fire. 
     Generally, a method of installing the recessed lighting system  1000   c  may include the following steps: (1) installing the housing  1100   c  into the building structure using the hanger bar assembly, (2) removing a knockout  1140  and/or opening a feedthrough tab  1130  to pass a wire or cable that supplies electrical power to the light module  1200  into the cavity  1101  of the housing  1100   c , (3) configuring the wire/cable for connection (e.g., attaching a connector, connecting a ground wire to an electrical ground), (4) passing the wire/cable through a feedthrough openings  1514  and  1516  on the partition plate  1500   a , (5) inserting and securing the partition plate  1500   a  to the cavity  1101  of the housing  1100   c , (6) electrically coupling the light module  1200  to the wire/cable, (7) mounting the trim  1300  to the light module  1200 , (8) inserting the light module  1200  and the trim  1300  into the lighting compartment  1107  of the housing  1100   c . The trim  1300  may include a coupling mechanism, such as a friction spring clip, to secure the light module  1200  and the trim  1300  to the housing  1100   c.    
       FIGS. 9A-9F  show several views of the housing  1100   c . The housing  1100   c  may include several of the same features described above and below with respect to the other exemplary recessed lighting fixtures  1000 . Additionally, the housing  1100   c  may include support sections  1150  and  1152  to support the partition plate  1500   a . As shown in  FIGS. 9E and 9F , the support sections  1150  and  1152  may be integrated into the sidewall  1102  and/or the cover  1120  and may protrude into the cavity  1101  of the housing  1100   c . The support sections  1150  and  1152  may have a thickness similar to the sidewall  1102  and/or the cover  1120 , thus creating corresponding recesses on the exterior of the housing  1100   c  as shown in  FIG. 9E . However, in some implementations, the support sections  1150  and  1152  may be formed with a larger thickness. For example, the support sections  1150  and  1152  may protrude into the cavity  1101  of the housing  1100   c  without forming a recess on the exterior surface of the sidewall  1102 . Said in another way, the support sections  1150  and  1152  may be formed with sufficient thickness such that the support sections  1150  and  1152  are not observable on the exterior surface of the housing  1100   c.    
       FIG. 9F  shows the support sections  1150  and  1152  may each have a supporting surface that abuts a portion of the partition plate  1500   a . Thus, the shape and dimensions of the support sections  1150  and  1152  may determine where the partition plate  1500   a  is positioned within the cavity  1101  of the housing  1100   c . This, in turn, may dictate the dimensions and the volume of the wiring compartment  1105  and the lighting compartment  1107 . In some implementations, the support sections  1150  and  1152  may be dimensioned such that the volume of the wiring compartment  1105  is similar to previous junction boxes (e.g., between about 15 cubic inches to about 30 cubic inches). The volume of the wiring compartment  1105  may be dimensioned to support multiple wires/cables of varying size as described above. For example, the wiring compartment  1105  may house at least 8 wires/cables that each have a gauge of at least about 12. 
     Additionally, the supporting surface may include a groove that matches a ridge  1513  on the partition plate  1500   a . The groove may be used to align and/or register the partition plate  1500   a  to the support sections  1150  and  1152  during installation. In some implementations, the partition plate  1500   a  may be coupled to the housing  1100   c  via a twist and lock connector, thus the grooves may be also be used to guide a twisting motion of the partition plate  1500   a . To secure the partition plate  1500   a  to the housing  1100   c  via the twist and lock mechanism, the housing  1100   c  may also include an opening  1111  to receive a peg  1112  to engage with and secure the partition plate  1500   a  to the housing  1100   c . It should be appreciated the peg  1112  may be other coupling members including, but not limited to a screw fastener, a bolt fastener, a dowel, and a rod. 
     It should be appreciated the housing  1100   c  shown in  FIGS. 9A-9F  is configured for use with a partition plate  1500   a  and thus does not include structural features for the yoke  1400  (e.g., yokes  1400   a  and  1400   b ). However, in some implementations, the housing  1100   c  may include features to facilitate the installation of both the partition plate  1500   a  and/or the yoke  1400  to provide greater flexibility in configuring the recessed lighting system  1000   c  for different use cases depending on whether the yoke  1400  or the partition plate  1500   a  is more preferable. In this manner, a single design for the housing  1100   c  may be manufactured as opposed to two separate designs. In some implementations, the housing  1100   c  may be configured to support both the partition plate  1500   a  and the yoke  1400  simultaneously. 
     As before, the housing  1100   c  may be formed from various thermoplastic and thermosetting polymers including, but not limited to polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, and polystyrene. The housing  1100   c  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, and blow molding. 
       FIGS. 10A-10C  show several views of the partition plate  1500   a . As shown the partition plate  1500   a  includes a base  1510  to support the various features of the partition plate  1500   a . The base  1510  may include a flange  1511  along the periphery of the base  1510 . The flange  1511  may be used, in part, to incorporate a coupling mechanism to couple the partition plate  1500   a  to the housing  1100   c  and to increase the structural rigidity of the partition plate  1500   a . The partition plate  1500   a  may generally have various cross-sectional shapes (the cross-section being defined along a plane parallel to the opening  1103  of the housing  1100   c ) including, but not limited to a circle, an ellipse, a regular polygon, and an irregular polygon. In some implementations, the shape of the partition plate  1500   a  may be based on the shape of the cavity  1101  of the housing  1100   c  such that the partition plate  1500   a  may substantially separate the wiring compartment  1105  from the lighting compartment  1107 . 
     Various types of coupling mechanisms may be used including, but not limited to a twist and lock connector, a snap fit connector, a friction clip, and a spring clip.  FIGS. 10A-10C  show the partition plate  1500   a  as having a twist and lock connector  1540  and a recessed connector  1530  on the flange  1511  to abut against the support sections  1150  and  1152  of the housing  1100   c . The twist and lock connector  1540  may include a notch  1542  to allow the peg  1112  on the housing  1100   c  to pass through said notch  1542  when the partition plate  1500   a  is inserted into the cavity  1101  of the housing  1100   c . As the partition plate  1500   a  is rotated, the peg  1112  may engage with the twist and lock connector  1540  as shown in  FIG. 11A . The recessed connector  1530  may include a notch  1520  to allow the partition plate  1500   a  to pass by the coupling member  1614  used to couple the hanger bar assembly  1600  to the housing  1100   c  (e.g., a thumbscrew, a butterfly wing screw) when inserted into the cavity  1101  of the housing  1100   c . Additionally, the partition plate  1500   a  may include the ridge  1513  protruding from the bottom of the partition plate  1500   a  along the periphery to align with the groove on the support sections  1150  and  1152  of the housing  1100   c.    
     The flange  1511  may be dimensioned and shaped to increase the structural rigidity of the partition plate  1500   a . For example, the flange  1511  may be dimensioned to ensure the partition plate  1500   a  does not have portions that are excessively thin, such as near the notches  1520  and  1542  and/or the connectors  1530  and  1540 . The base  1510  may also include features  1512  to structurally reinforce the partition plate  1500   a  by increasing the structural rigidity, such as a gusset. In some implementations, the structural features  1512  may be placed proximate to the depressions formed by the twist and lock connector  1540  to increase the structural rigidity. As shown in  FIGS. 10B and 10C , the features  1512  may be a protrusion on the bottom side of the partition plate  1500   a  corresponding to a recess formed on the top side of the base  1510 . 
     The partition plate  1500   a  may also include feedthroughs for a wire/cable to pass from the wiring compartment  1105  into the lighting compartment  1107  to electrically connect the light module  1200  to an electrical power source. As shown in  FIGS. 10A-10C , the partition plate  1500   a  may include feedthroughs  1514  and  1516  for AC/DC wires/cables and a ground wire, respectively, disposed on the base  1510 . The feedthroughs  1514  and  1516  may be dimensioned according to the size of the respective wire/cable used by the light module  1200 . The feedthroughs  1514  and  1516  may also be positioned on the partition plate  1500   a  to improve the ease of routing the wires/cables from the wiring compartment  1105  to the lighting compartment  1107 , which may depend on the location of the feedthrough tab  1130  or knockout  1140  used to insert the wire/cable and/or the position of an electrical connector on the light module  1200 . 
     The partition plate  1500   a  may be formed from various metals, thermoplastic polymers, and thermosetting polymers including, but not limited to aluminum, steel, stainless steel, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), and polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. The partition plate  1500   a  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, blow molding, casting, and machining. 
       FIGS. 11A and 11B  show several views of the partition plate  1500   a  disposed in the cavity  1101  of the housing  1100   c . As shown in  FIG. 11A , the partition plate  1500   a  may be secured to the housing  1100   c  via a peg  1112  that engages with the twist and lock connector  1540 . Furthermore, the partition plate  1500   a  may be shaped and dimensioned to match the cross-sectional shape of the cavity  1101  of the housing  1100   c  such that the flange  1511  of the partition plate  1500   a  is proximate to, or, in some instances, contacts the sidewall  1102  of the housing  1100   c.    
     A Second Example of a Recessed Lighting System with a Partition Plate 
       FIGS. 12A and 12B  show several views of a second exemplary implementation of a recessed lighting system  1000   d  with a partition plate  1500   b . As before, the recessed lighting system  1000   d  may include a housing  1100   d  to cover and support the various components of the recessed lighting system  1000   d . A partition plate  1500   b  may be inserted into the cavity  1101  of the housing  1100   d  to push back against wires/cables in the housing  1100   d  and to define a wiring compartment  1105  and a lighting compartment  1107 . A light module  1200  and a trim  1300  may be inserted into the lighting compartment  1107 . The trim  1300  may further include a coupling member  1330  to secure the assembly of the light module  1200  and the trim  1300  to the housing  1100   d .  FIG. 12A  also shows a hanger bar assembly  1600  may be mounted to the sidewall  1102  of the housing  1100   d  for installation onto a building structure (e.g., a T-bar, a joist, a stud). A method of installing the recessed lighting system  1000   d  depicted in  FIG. 12A  may be substantially similar to the method described above for the recessed lighting system  1000   c.    
       FIGS. 13A-13F  show several views of the housing  1100   d . The housing  1100   d  may include several of the same features described above and below with respect to the other exemplary recessed lighting fixtures  1000 . For the housing  1100   d  depicted in  FIGS. 13A-13F , the guides  1160  may be extended to cover a larger portion between the opening  1103  and the cover  1120  in order to provide additional alignment to the hanger bar assembly  1600  during assembly. Additionally, the housing  1100   d  may only have support section  1152  (the support sections  1150  are no longer included) to simplify manufacture of the housing  1100   d . The location of the opening  1111  used to receive the peg  1112  that engages with the partition plate  1500   b  may correspondingly be relocated based on the position of the support section  1152  on the housing  1100   d.    
     As before, the housing  1100   d  may be formed from various thermoplastic and thermosetting polymers including, but not limited to polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, and polystyrene. The housing  1100   d  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, and blow molding. 
       FIGS. 14A-14C  show several views of the partition plate  1500   b . The partition plate  1500   b  may include several of the same features as described above and below with respect to the other exemplary recessed lighting fixtures  1000 . The partition plate  1500   b  shown in  FIGS. 14A-14C  may further include additional structural features to improve ease of installation and/or the structural properties of the partition plate  1500   b . For example,  FIG. 14C  shows the partition plate  1500   b  includes walls  1550  on the flange  1511 , which may be used, in part, to guide the partition plate  1500   b  into the cavity  1101  of the housing  1100   d  by reducing the amount of side to side movement and/or rotation of the partition plate  1500   b  as the partition plate  1500   b  is being inserted into the housing  1100   d . The walls  1550  may also increase the structural rigidity of the partition plate  1500   b  and the housing  1100   d  once the partition plate  1500   b  is installed. 
     The partition plate  1500   b  may also include a structural feature  1554  on top of the base  1510  that abuts the feature  1512  disposed on the bottom of the partition plate  1500   b . The structural feature  1554  may be used to increase the structural rigidity near the structural feature  1512 . Additionally, the structural feature  1554  may provide a surface against which a user may press against when rotating the partition plate  1500   b  to engage the twist and lock connector  1540 . 
       FIGS. 14A and 14C  also show the partition plate  1500   b  may include a cable restraint  1552  disposed on the top of the base  1510 . The cable restraint  1552  may be used to secure a portion of a wire/cable (e.g., AC/DC wire/cable) inserted through the feedthrough  1514  such that the wire/cable is kept to the side when the light module  1200  is inserted into the housing  1100   d . For example, the cable restraint  1552  may also be positioned proximate to the flange  1511  such that a portion of the wire/cable or a connector at the end of the wire/cable is constrained by a combination of the cable restraint  1552  and the flange  1511 . In this manner, the connector at the end of the wire/cable does not interfere with the light module  1200  as the light module  1200  is pushed into the cavity  1101  of the housing  1100   d . In some implementations, a wire/cable with excess length may be wrapped around the cable restraint  1552 . 
     The partition plate  1500   b  of  FIGS. 14A-14C  also removes the recessed connector  1530  and includes only the twist and lock connector  1540  thus simplifying manufacture of the partition plate  1500   b . The notch  1520  may thus allow the partition plate  1500   b  to pass through the peg  1112  and the coupling member  1614  for the hanger bar assembly  1600 . The partition plate  1500   b  may also include a mechanical stop  1544  at an end of the twist and lock connector  1540 . The mechanical stop  1544  may prevent the partition plate  1500   b  from rotating beyond a desired position when installed into the cavity  1101  of the housing  1100   d . Additionally, the inclusion of the mechanical stop  1544  may enable the twist and lock connector  1540  to have a shallower depth on the flange  1511 , thus increasing the structural rigidity of the partition plate  1500   b.    
     As before, the partition plate  1500   b  may be formed from various metals, thermoplastic polymers, and thermosetting polymers including, but not limited to aluminum, steel, stainless steel, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), and polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. The partition plate  1500   b  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, blow molding, casting, and machining. 
       FIGS. 15A and 15B  show several views of the partition plate  1500   b  disposed in the cavity  1101  of the housing  1100   d . As shown, the walls  1550  on the partition plate  1500   b  may be proximate to or, in some instances, contact the sidewall  1102  of the housing  1100   d . As before, the peg  1112  on the housing  1100   d  may engage the twist and lock connector  1540  thus securing the partition plate  1500   b  to the housing  1100   d.    
     A Third Example of a Recessed Lighting System with a Partition Plate 
       FIG. 16  shows a third exemplary implementation of a recessed lighting system  1000   e  with a partition plate  1500   c . In this implementation, the housing  1100   e  is the same as the housing  1100   d  shown in  FIGS. 13A-13F . As before, a partition plate  1500   c  may be inserted into the cavity  1101  of the housing  1100   e  to push back against wires/cables in the housing  1100   e  and to define a wiring compartment  1105  and a lighting compartment  1107 . A light module  1200  and a trim  1300  may be inserted into the lighting compartment  1107 . The trim  1300  may further include a coupling member  1330  to secure the assembly of the light module  1200  and the trim  1300  to the housing  1100   e . A hanger bar assembly (not shown) may be mounted to the sidewall  1102  of the housing  1100   e  for installation onto a building structure (e.g., a T-bar, a joist, a stud). A method of installing the recessed lighting system  1000   e  depicted in  FIG. 16  may be substantially similar to the method described above for the recessed lighting system  1000   c.    
       FIGS. 17A-17D  show several views of the partition plate  1500   c . The partition plate  1500   c  may include several of the same features described above with respect to the other exemplary recessed lighting fixtures  1000 . The partition plate  1500   c  may additionally include a stand-off connector  1560  disposed on the flange  1511  as shown in  FIGS. 17A and 17C . The stand-off connector  1560  may be used to support a stand-off  1562  for assembly of a cover plate  1700  on the housing  1100   e . In some implementations, the stand-off connector  1560  may be an opening in the flange  1511  configured to receive an insert. The insert may be threaded to secure the stand-off  1562  to the partition plate  1500   c . In some implementations, the insert may be formed from a metal. In some implementations, the opening of the stand-off connector  1560  may be threaded depending on the material used to form the partition plate  1500   c . As shown, the partition plate  1500   c  may include a pair of stand-off connectors  1562  disposed on opposing sides of the flange  1511 . 
     As before, the partition plate  1500   c  may be formed from various metals, thermoplastic polymers, and thermosetting polymers including, but not limited to aluminum, steel, stainless steel, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), and polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. The partition plate  1500   c  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, blow molding, casting, and machining. 
       FIGS. 18A and 18B  show the partition plate  1500   c  disposed in the cavity  1101  of the housing  1100   e . As shown, the partition plate  1500   c  may be secured by the peg  1112  on the housing  1100   e . Additionally, the stand-off connectors  1562  may be oriented to be accessible by a user after the partition plate  1500   c  is installed. 
       FIGS. 19A-19D  show the partition plate  1500   c  with a stand-off  1562  and a cover plate  1700  disposed on the opening  1103  of the housing  1100   e . The cover plate  1700  may be used in a similar manner to where an electrical outlet in a building may be covered when unused such that the wall or ceiling does not have an exposed opening. As shown in  FIGS. 19A-19C , the stand-off  1562  may be an elongated component with a coupling mechanism (e.g., a threaded male connector) at one end to connect to the stand-off connector  1560  on the partition plate  1500   c . At the other end, the stand-off  1562  may have a coupling mechanism configured to couple the cover plate  1700  to the opening  1103  of the housing  1100   e . Various types of coupling mechanisms may be used including, but not limited to a screw fastener, a bolt fastener, a snap fit connector, and an adhesive. 
       FIG. 19D  shows the cover plate  1700  may be placed onto the opening  1103  of the housing  1100   e . As shown, the cover plate  1700  may substantially cover the opening  1103 . The cover plate  1700  may have various shapes including, but not limited to a circle, an ellipse, a regular polygon, and an irregular polygon. In some implementations, the cover plate  1700  may also include a beveled or a tapered edge where a central portion of the cover plate  1700  protrudes outwards from the opening  1103  of the housing  1100   e  while an edge portion of the cover plate  1700  abuts a portion of the opening  1103  and/or the ceiling or wall. The cover plate  1700  depicted in  FIG. 19D  may be coupled to the stand-offs  1562  using screw fasteners  1704  inserted through holes  1702  on the cover plate  1700 . 
     The stand-off  1562  and the cover plate  1700  may be formed from various metals, thermoplastic polymers, and thermosetting polymers including, but not limited to aluminum, steel, stainless steel, polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), and polyurethane (PU), polyethylene, polyethylene terephthalate, polypropylene, polystyrene, a Makrolon® polycarbonate, and a Therma-Tech™ thermally conductive compound. The stand-off  1562  and the cover plate  1700  may be fabricated using various manufacturing methods including, but not limited to injection molding, 3D printing, blow molding, casting, and machining. 
     Conclusion 
     All parameters, dimensions, materials, and configurations described herein are meant to be exemplary and the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the inventive teachings is/are used. It is to be understood that the foregoing embodiments are presented primarily by way of example 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. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions and arrangement of respective elements of the exemplary implementations without departing from the scope of the present disclosure. The use of a numerical range does not preclude equivalents that fall outside the range that fulfill the same function, in the same way, to produce the same result. 
     Also, various inventive concepts may be embodied as one or more methods, of which at least one example has been provided. The acts performed as part of the method may in some instances be ordered in different ways. Accordingly, in some inventive implementations, respective acts of a given method may be performed in an order different than specifically illustrated, which may include performing some acts simultaneously (even if such acts are shown as sequential acts in illustrative embodiments). 
     All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety. 
     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. 
     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, Section 2111.03.