Abstract: A recessed lighting fixture comprises a generally annular body having a central cavity in the form of a partially spherical socket. There is a lighting support member having a partially spherical exterior portion which is closely fitted within the partially spherical socket of the annular body. The lighting support member is pivotable relative to the annular body, but air flow between the partially spherical socket of the annular body and the partially spherical exterior portion of the lighting support member is substantially restricted. There may be a light source mounted to the lighting support member adjacent a bottom thereof. The light source may be a light-emitting diode.

Abstract: Provided is an adaptable fire-resistant housing for a light fixture, comprising: a. a junction box made from steel, the junction box having an opening on a bottom configured to receive the light fixture; and b. an adjustable ring attached to the bottom of the housing, the adjustable ring having an opening configured to be attached to the light fixture or an adapter ring; wherein the light fixture or the adapter ring is attached to the adjustable ring.

Abstract: The downlight apparatus includes a surface rim, a rotation bracket, a bowl housing and a light source. The surface rim has an rim edge and a lateral wall. The rotation bracket includes a bracket body and two arms. Each arm has an arm bottom and a arm top. The rotation bracket is attached to the lateral wall. The bowl housing has a bowl edge. The bowl edge defines a light opening. The arm tops of the two arms are attached to the bowl edge. The bowl housing is rotatable with a tilt angle with respect to the arm tops. The light source is mounted inside the bowl housing for emitting a light from the light opening.

Abstract: A recessed luminaire housing assembly for positionally sealing a fixed position junction box per code requirements is disclosed. The luminaire housing may include a fixed position junction box, a junction box interface hardware, and a vertically adjustable recessed light mounting housing. The recessed light mounting housing is adjustably and removably fastened to the junction box interface hardware and the fixed position junction box.

Abstract: The present disclosure provides a method of mounting a lighting appliance that can be easily attached to a building material, a mounting structure for a lighting appliance, a lighting appliance, and a method of constructing a building. An electrical cable of a power supply unit disposed at a position that does not overlap a mounting hole on a rear side of a building material is passed through an inner opening of an annular mounting bracket, and a power supply side connector provided at an end portion of the electrical cable is positioned on a front side of the building material. The power supply side connector is connected to a lighting appliance side connector fixed to an upper surface of a fitting adapter provided on a rear surface of a lighting appliance body on a side opposite to a light emitting surface.

Abstract: A downlight, including a metal housing, an insulating reflective shell, a photoelectric module and a diffusion plate; the metal housing includes a base plate, a side wall, an assembly cavity, and a mounting opening, and a power port; the insulating reflective shell includes a mounting base plate, a reflective side wall, a light source cavity, and a light emission opening, a power port corresponding to the power port of the metal housing, and a ring of protrusion wall; the photoelectric module is provided in the light source cavity and is attached to the mounting base plate, the insulating reflective shell is fixed in the assembly cavity and the power port of the insulating reflective shell is aligned with the power port of the metal housing; and the diffusion plate is fixed to the metal housing and seals the mounting opening of the metal housing.

Abstract: An innovative light fixture for use with acoustical shells is disclosed. The fixture incorporates a dome gimbal to allow rotation front-to-back and left-right around a horizontal axis and a third axis of rotation around a vertical axis. The dome configuration allows for a low profile and toolless adjustment allows stage side aiming by hand.

Abstract: A light fixture includes a housing for supporting a light source and an enclosure for supporting a driver in electrical communication with the light source. The enclosure is selectively supported in one of a first position and a second position while maintaining electrical communication between the driver and the light source in both positions. The enclosure is directly coupled to the housing in the first position, and the enclosure is supported separately from the housing in the second position.

Abstract: The downlight apparatus includes a surface rim, a rotation bracket, a bowl housing and a light source. The surface rim has an rim edge and a lateral wall. The rotation bracket includes a bracket body and two arms. Each arm has an arm bottom and a arm top. The rotation bracket is attached to the lateral wall. The bowl housing has a bowl edge. The bowl edge defines a light opening. The arm tops of the two arms are attached to the bowl edge. The bowl housing is rotatable with a tilt angle with respect to the arm tops. The light source is mounted inside the bowl housing for emitting a light from the light opening.

Abstract: A modular lighting system adapted to be installed in and illuminate an environment. The lighting system includes a first light fixture including a first canopy assembly adapted to engage a desired surface in the environment, a first light-emitting diode (LED) module, and a second LED module. The first LED module has a first connector assembly configured to mechanically and electrically connect the first LED module to the first light fixture via the first canopy assembly, the second connector assembly is configured to mechanically and electrically connect the second LED module to the first LED module, and the first LED module is interchangeable with a third LED module including a third connector assembly configured to mechanically and electrically connect the third LED module to both the second LED module and the first light fixture via the first canopy assembly.

Abstract: A light fixture and wireway assembly is provided in a low-profile configuration wherein at least a portion of a plurality of wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine. In one configuration, at least portions of two to four individual wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine powered by an LED power supply also disposed within the outer perimeter of the overall assembly. Each wireway can be accessed through a single wireway wall without requiring conduit outside of the outer perimeter of the assembly.

Abstract: A recessed downlight with flexible installation structure includes a mounting plate provided with an installation hole and a heat dissipation housing; the downlight installation structure further comprises an introducing module and a guiding structure; the introducing module is arranged on an inner edge of the installation hole and is fixedly connected to the mounting plate; the heat dissipation housing is provided with a guiding structure, and the guiding structure is configured to surround the outer edge of the heat dissipation housing; when the heat dissipation housing is arranged in the installation hole in a penetrating manner, the guiding structure is connected to the introducing module in a paired manner, thereby enabling the heat dissipation housing to be movably arranged on the mounting plate; an LED module with adjustable angle is arranged in the heat dissipation housing.

Abstract: The present disclosure discloses a luminaire body, a face ring and a lighting device. The luminaire body includes: a lamp, and at least one rotating shaft disposed on a sidewall of the lamp. The rotating shaft includes an elastic mechanism. One end of the elastic mechanism serves as a connection end which is disposed on the sidewall of the lamp. At least one first rabbet is provided in the elastic mechanism in a direction away from the connection end.

Abstract: A lighting device assembly includes a light source attached to a heat sink member, a first optic device and a mounting housing configured to be secured in or to a ceiling, wall or other object, and to hold the heat sink member. A second optic device including a second optic member is configured to receive light emitted in a first direction from the light emitting surface of the first optic device and to emit light in a second direction that is transverse to the first direction. A connection mechanism selectively connects the second optic device to the mounting housing, for selective disconnection from the mounting housing.

Abstract: A light fixture includes a mounting housing comprising a junction box, a first flange and a plurality of heat dissipation fins, and a second housing comprising a second flange. The mounting housing is mountable in an aperture in a panel, and the second housing is mountable to the first housing.

Abstract: A system for mounting an object in an opening in a structural member that has opposing first and second surfaces, the system including a housing with an interior to house the object and receivable within the opening in the structural member, the housing having at least one bendable tab to bear against and support the housing on the first surface of the structural member, the housing further including at least one pair of openings, and a trim ring having an interior side and an opposing exterior side, the interior side having one tab shaped to engage an opening in the pair of openings, the trim ring further including at least a second tab sized and shaped to engage an opening in a second pair of openings in the housing and thereby hold the trim ring in place on the housing while bearing against the second surface of the structural member.

Abstract: A bar hanger assembly is used to couple a housing to a support structure. The bar hanger assembly may include a bar hanger holder to mechanically couple the bar hanger assembly to the housing, such as a junction box, a can housing, or a frame. The bar hanger holder may define a channel to mechanically guide and support a pair of bar hangers. The bar hangers may be mechanically coupled together in a telescoping manner such that the first bar hanger is slidably adjustable with respect to the second bar hanger. The bar hanger holder and each bar hanger may physically contact one another and, in some instances, generate a compressive force to substantially reduce unwanted play. Each bar hanger may include a bar hanger head to couple the bar hanger assembly to various types of support structures, such as a T-bar, a stud, a joist, or a frame.

Abstract: The present invention is based on a fastening system for flush mounting a device in a wall and/or ceiling and/or similar through a hole and on the device that comprises the fastening system, wherein said fastening system comprises a gripping means and a securing system. The fastening system enables the device to be flush mounted in a wall and/or ceiling and/or similar through a hole such that the perimeter of the visible face of the device is flush with the wall and/or ceiling and/or similar.

Abstract: An arrangement (100) and method for suspending a lighting device is provided. The arrangement comprises a spring element (110) having a central, U-shaped portion (120) and a first and a second coil (130a, 130b) extending from a respective first and second leg (140a, 140b) of the central portion and along an axis (A) parallel to a base (145) of the portion. The coils, in an unbiased state of the spring element, are spaced apart by a first distance (d) along the axis (A). The arrangement further comprises a housing (200) comprising a first and a second cavity (210a, 210b) spaced apart by the first distance (d) for fitting accommodation of the first and second coil, respectively. The arrangement further comprises a support element (300) arranged between the first and second cavities and configured to confine the first and second coil within the first and second cavity, respectively.

Abstract: Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.

Abstract: A light suitable for lighting take-off and landing runways and taxiways of airports that includes a housing cover provided with a light passage opening, an optical system including at least one light-emitting diode module with at least one LED-chain having a plurality of light-emitting diodes as light sources, a reflector, and a prism having a shape complementary to that of the light passage opening, an insert and a sealing ring, which is arranged between the housing cover and the insert. On an underside of the housing cover of the light, the at least one LED module and reflector are arranged in a first chamber, which is separated from a second chamber of the light by a seal including a flexible insulating and heat-conducting film arranged between the reflector and the underside of the housing cover.

Abstract: An LED lighting apparatus comprises a housing having at least one sidewall, an LED board, a lens having a back side facing the LED board and a front side opposite to the back side, and a driver module cover. The lens is disposed with respect to the LED board such that the plurality of the LEDs illuminate the back side of the lens. An adapter bracket is employed to couple the LED lighting apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snapped into the junction box, the driver module cover is at least partially disposed in the junction box.

Abstract: A lighting fixture configured to expand and collapse, and methods for expanding and collapsing a light fixture are disclosed. Embodiments of the lighting fixture include a lighting fixture with a movable section that collapses into at least one cavity in a base housing for storage and shipment, and extends from the cavity for operation. In the collapsed configuration the lighting fixture fits into a smaller container than when the lighting fixture is in the expanded configuration. In some embodiments a locking member locks the movable section into its extended position and can be retracted by a user by manually disengaging the locking member. Accessories and extenders that can be attached to the lighting fixture can be stored in the one or more cavities into which the movable section is stowed in the collapsed configuration.

Abstract: A ventilation fan with lamp is used to be installed to a ceiling including an installation opening and comprises a housing, a fan module and a lamp module. The housing includes a first opening and a second opening, and the first opening is aligned with the installation opening. The fan module is disposed in the housing. The lamp module is fixed to the first opening by a plurality of elastic elements passing through the housing and includes a lamp cover, a base and a lens. The lamp cover includes a flange portion and a plurality of contact portions, the flange portion and the contact portions are disposed outside the installation opening of the ceiling. The lamp module is connected to the ceiling via the contact portions to make a gap between the lamp cover and the ceiling, and the gap serves as an air inlet of the ventilation fan.

Abstract: A method of adding a backup power source to a luminaire that includes exposing driver circuitry through a back surface of a housing for a luminaire having a downlight geometry. The housing contains a light engine that is positioned to emit light through a light emission end of the housing. The driver electronics controls power received by the luminaire for powering the light engine. The method may continue with connecting a battery junction box having an electrical pathway opening in reversible engagement to the back surface of the housing by snap fit engagement. The method may further include connecting a backup battery unit to the luminaire by wiring extending from the battery backup unit through the electrical pathway opening in the junction box to the driver electronics for the luminaire.

Abstract: A retrofit trim lighting device is provided. In example embodiments, the retrofit trim lighting device comprises a bracket comprising an opening; at least one torsion spring secured to the bracket and configured to mount the retrofit trim lighting device within a recessed housing; a retrofit housing comprising at least one light engine; and an engagement element. The engagement element is secured to the retrofit housing through the opening of the bracket such that, when so secured, the retrofit housing and the bracket are rotatable relative to one another.

Abstract: Some embodiments of the present fixtures include a mechanical actuator configured to direct movement of a light mount along an arcuate path defined by arcuate bearing surface(s). Some embodiments of the present fixtures include a rotatable portion coupled to a stationary portion at an interface that is at least partially defined by smooth surface(s). Some embodiments of the present mounts include a base having a sidewall that defines an outer perimeter and mounting tab(s), each movable between a deployed state and a retracted state in which at least a portion of the mounting tab is disposed within the outer perimeter. Some embodiments of the present removable shroud assemblies include a lens coupled to a second end of a shroud and movable from a first position to a second position in which a portion of the lens is not in contact with the second end of the shroud.

Abstract: A luminaire includes a housing, a downlight that includes one or more first light sources configured to emit a first light downwardly from the housing, a waveguide, and one or more second light sources. The waveguide is formed of a portion of an optical material and characterized by opposing planar faces joined by one or more edge faces about a periphery of the optical material. The waveguide forms at least a portion of an uppermost optical surface of the luminaire. The one or more second light sources are coupled with the housing and configured to emit a second light into the optical material through at least one of the one or more edge faces. The waveguide is configured to emit at least a portion of the second light upwardly from an upper one of the planar faces.

Abstract: A multi-angle light source device includes a holder, a housing movably connected with the holder and rotated relative to the holder, a power supply received in the housing and electrically connected to the holder, and a body fixedly connected to the housing. The body includes a fixing portion fixedly connected to the housing, a connecting portion rotated relative to the fixing portion and at least one illuminant formed on a distal portion of the connecting portion to rotate relative to the connecting portion. The present structure can flexibly adjust its luminous angle so that it can be conveniently used in different lamp-housings, suppress light pollution, reduce waste of electric energy, and further improve its heat dissipation performance of the product by the power supply separating from its heat source of each illuminant.

Abstract: Optical components for lighting devices and lighting devices including such components are described. In some embodiments the optical components are in the form of a lens that alter the distribution of light produced by a lighting fixture. In some embodiments, the lenses are in the form of a downlight to wallwash lens which, when placed in a downlight fixture, convert the light distribution to that of a wallwash fixture, e.g., causing the downlight to produce an off-axis light distribution, without changing the fixture. The lens includes a body with a light source facing side and an opposite room facing side having two optically active regions, each including structures that redirect a portion of light received through the light source facing side and incident thereon. The first region includes structures that redirect, via refraction, and the second region includes structures that redirect, in part via total internal reflection.

Abstract: A vehicle lamp assembly comprising a lamp housing, a light source, a lens, and a bezel. The light source is attached to and supported by the lamp housing and the lens is spaced from the light source. The lens is attached to and supported by the bezel. The lamp housing, lens, and/or bezel include a wall with one or more perforated areas that are defined by a micro mesh of holes. Each hole in the micro mesh has a cross-sectional area that is less than 0.3 square millimeters. The micro mesh of holes provides airflow through the vehicle lamp assembly to reduce or eliminate the build-up of condensation inside the vehicle lamp assembly. The micro mesh of holes may be backlit or arranged in a pattern to enhance aesthetics or create a logo on the vehicle lamp assembly.

Abstract: A linear light fixture assembly for supporting a light fixture in a ceiling structure, comprises a light fixture mounting structure having a pair of opposed boundary regions configured to fit within a designated light fixture receiving region in the ceiling structure, and a plurality of spring elements configured to spaced outwardly from at least one of the boundary regions, each spring element having a mounting region configured to be anchored to the mounting structure and a free end region to extend therefrom and to be laterally outwardly biased in a first position to form a path of contact with a support surface region on the ceiling structure to anchor the structure in the receiving region, each of the spring elements configured to be movable toward the corresponding boundary region in a second position to release the path of contact to release the light fixture from the receiving region.

Abstract: A small dual-speaker ceiling speaker system including a loudspeaker and a tweeter with an acoustic diffuser that is adjustable over a range of lengths for different thicknesses of ceiling tile and is independently adjustable over a range of acoustic port sizes. The loudspeaker sends acoustic waves into a acoustic channel that includes a truncated conical shell, or acoustic channel cone, with a cylindrical acoustic channel shell extending therefrom. A tweeter is mounted in the acoustic channel shell. A diffuser couples to the acoustic channel shell using threads that may be engaged or disengaged. The diffuser has a diffuser element that can be raised or lowered with a screw to adjust the size of the acoustic port. The diffuser element has demarcations for visually indicating acoustic port size. A housing with a base having extendable braces supports the speaker system on the ceiling grid, rather than on the tile.

Abstract: In a lighting strip system having an elongate support arrangement for holding lamp units and lines for electricity supply and/or signal transmission, the support arrangement has an I-shaped profile in cross section, with two receiving regions, which run in the longitudinal direction of the support arrangement and are separated by a preferably vertically aligned partition, wherein the lines for electricity supply and/or signal transmission are arranged in one of the receiving regions and operational devices of the lamp units are arranged in the other receiving region.

Abstract: A lamp includes a main body, a lighting assembly, a lampshade assembly, and a reflector cover. The main body includes a heat sink and a lamp holder, the bottom of the heat sink extends outwardly to form a flange, the lamp holder has a trumpet shaped structure, a bottom of the lamp holder has a minor axis along a longitudinal direction and a major axis along a transverse direction. The lighting assembly is mounted to the bottom of the lamp holder. The lampshade assembly includes a cover body covering the lamp holder and a spring located in the cover body. The reflector cover includes a sleeving portion and an embedded portion, an inner diameter of the embedded portion is less than the major axis of the bottom of the lamp holder, and is greater than the minor axis.

Abstract: A recessed light apparatus for being installed at a ceiling includes a light source unit, a heat sink for dissipating heat generated from the light source unit, and a thermal insulating member coupled between the heat sink and the light source unit to define an upper space above the heat insulating member and a bottom space below the thermal insulating member. In case of fire, the heat insulating member prevents flame or fire spreading from the bottom space to the upper space.

Abstract: The present invention discloses a T-Grid LED lighting system with insertedly coupled illumination assembly, including a T-Bar, an illumination assembly, and a driver assembly. The illumination assembly includes parts that are insertedly coupled to each other and to the T-Bar, providing convenience and saving cost in maintenance and/or update. The T-Grid LED lighting system also generates less heat and has advantageous thermal dissipation, eliminating the need for extra heat dissipation structures.

Abstract: A visible LED retrofit kit includes a chassis for an LED assembly and an elongated bracket including a first end portion and a bifurcated second end portion. The first end portion of the bracket is configured to be bent for attachment thereof to a first longitudinal side of a light fixture housing. The second end portion of the bracket includes a first tab and a second tab. The first tab is configured to be bent for attachment of the second end portion to a second longitudinal side of the light fixture housing. The second tab is configured to movably couple the chassis to the second longitudinal side of the light fixture housing.

Abstract: A light-emitting diode lamp includes an optically-transparent lens and an assembly. The lens includes a parabolic section defined about an axis and having a focus. The section includes a surface extending from the axis to a periphery of the section at a first end of the section, and a channel extending along the axis partially inside the section at a second end of the section. The assembly includes a chip and a dome. The chip is disposed in the channel at the focus of the section. The dome is disposed in the channel forming an interior space between the dome and the lens. The space is filled with an optically-transparent material having an index of refraction approximately equal to an index of refraction of the lens that eliminates or reduces effect of an optical interface between the material and the lens on direction of light emitted by the chip.

Abstract: A lighting apparatus includes an elongated housing defining an elongated chamber. The housing is mountable at first end to a structure. A fixture includes a receptacle that receives a light bulb. The fixture is configured to be slidably inserted into the housing from inside the structure and positioned within the elongated chamber of the elongated housing outside the structure. An alternate lighting apparatus includes a mounting apparatus having a housing including a receptacle for receiving a light bulb and a body portion connected to the housing. The mounting apparatus is positionable in a first position inside the structure and configured for receiving a light bulb inside the structure, and the mounting apparatus is postionable in a second position wherein the mounting apparatus with the housing and the received light bulb is slidably inserted through a bore in a wall of the structure and the housing is positioned outside the structure.

Abstract: An illumination device (6) comprising a light source (8) producing a first cone of light (10) and a deflection unit (12) for the beam-shaping conversion of the first cone of light (10) into a second cone of light (14a,b) and to emit the latter towards the target area (4a,b), the deflection unit (12) can be varied in order to vary the form (Fa,b) and/or the intensity distribution (Ia,b) in the second cone of light. An illumination system (2) contains the illumination device (6) and the target area (4a,b). The illumination device (6) or the illumination system (2) is used to illuminate a surface of an interior of a vehicle as target area (4a,b).

Abstract: A utility vehicle includes a headlamp including a first connector, a headlamp housing accommodating the headlamp, and a harness including a second connector configured to be connected with the first connector, in which the headlamp housing includes a connector holding portion holding the first and second connectors connected with each other.

Abstract: A recessed light apparatus for being installed at a ceiling includes a light source unit, a heat sink for dissipating heat generated from the light source unit, and a thermal insulating member coupled between the heat sink and the light source unit to define an upper space above the heat insulating member and a bottom space below the thermal insulating member. In case of fire, the heat insulating member prevents flame or fire spreading from the bottom space to the upper space.

Abstract: An adjustment mechanism for directional recessed luminaires includes a tilt adjustment screw 104 and rotation adjustment screw 124 supported in adjacent positions on a bearing ring 102, the screws being oriented vertically and conveniently accessible through an open center of the bearing ring. Follower 106 travels vertically on the tilt adjustment screw when rotated. Drive link 108 connected to both the follower and a four bar linkage (110), transfers force from the follower to the linkage when the tilt screw is rotated. The linkage pivots about anchor points 114,116 and is pivotally connected to lamp carrier frame 118 supporting light source 105. When the tilt adjustment screw is rotated, light source moves along a path (FIG. 6, 7) to aim the light beam. After aiming, the mechanism locks the light source into place. The mechanism is compact and the adjustment screws are easily accessible from beneath the mechanism.

Abstract: An illustrative remodel light assembly for installation from a front side surface of a ceiling or wall panel, such as drywall, includes a collar inserted though and secured to a panel cutout with bendable fingers, a light housing, a light trim including a trim flange, the flange for abutting a front side surface of the panel, and a plurality of self-actuating spring clips coupled to an outer periphery of one of the light housing and light trim, the self-actuating spring clips engaging the collar. The collar provides a secure structure that lines the cutout and upon which the trim flange and self-actuating spring clips secure the light assembly.

Abstract: A lighting fixture can dispose a light source in a recess of a ceiling or another surface while providing at least one of three adjustments that facilitates installation or post-installation setup. The first adjustment can support mounting the fixture to surfaces of differing thicknesses while maintaining the light source at a uniform recess depth. The second possible adjustment can facilitate rotating a visible portion of the fixture, typically an aperture or hole through which light transmits from the light source into a room or some other illuminated space. After the lighting fixture is attached to the ceiling, a user can rotate the aperture for alignment with another fixture or another object. The third possible adjustment can provide an illumination pattern that can be tilted to various angles or oriented in various directions according to user preference or to establish a desired lighting effect.

Abstract: An instrument cluster assembly having a biasable member for reducing noise produced by vibration, where the instrument cluster assembly includes a light housing, a perimeter sidewall formed as part of the light housing, and at least one biasable member integrally formed with the perimeter sidewall. A mask is selectively connected to the light housing, and an inner perimeter sidewall is formed as part of the mask. The biasable member includes a base portion formed with the perimeter sidewall, and a flange portion integrally formed with the base portion. At least a portion of the flange portion is in contact with the inner perimeter sidewall of the mask, such that the flange portion deflects to absorb vibration between the light housing and the mask.

Abstract: A recessed down-light fixture having a housing with a light source aperture, a control gear assembly containing control gear, and a guidance system that allows the control gear assembly to slide and align with the light source aperture. The aperture enables passage of a light source through a barrier such as a ceiling. The housing includes a latching or locking device for release and passage of components through the aperture for maintenance or re-lamping. The control gear assembly, or internal wiring compartment, includes a stop that secures the shuttle in a position above the aperture. The control gear assembly can then be detached and pass through the aperture, providing access to electrical components and splices within the assembly. A trim ring having a concealable surface is mounted around the aperture to increase the structural integrity of the aperture, allow for plastering and painting, and to provide a finished appearance.

Abstract: A troffer door assembly has a frame assembly, a lens member and a light emitting diode (LED) assembly. The rigid brace member is affixed to the frame assembly such that the rigidity of the frame assembly is increased. Hinge members and latch members are positioned in exterior slots on the frame assembly such that the location of the hinge members and latch members can be adjusted. In this manner installed troffer light fixtures can be retrofitted by replacing the installed troffer door with the troffer door assembly as described.

Abstract: Disclosed is a light fixture that includes a main body element that approximates a hollow spherical segment, a lamp assembly that includes a light source, an inner element, an outer element, wherein the light source, the inner element and the outer element are coupled together with the main body element positioned between the outer element and the inner element, and a central portion that extends through the main body element and couples the inner element to the outer element, wherein the lamp assembly is selectively movable relative to the main body element to alter a relative position and an angular orientation of the light source relative to the bottom opening without any portion of the lamp assembly extending blow the main body element.