Abstract: A modular luminaire which uses LED light sources. The basic frame comprises two end pieces compressed together by through bolts. At least one elongated heat sink is compressed between the end pieces. Each heat sink may bear a plurality of LEDs mounted on a printed circuit board which may have an integral metallic backplate, and is installed on one of the heat sinks with a layer of heat conductive grease therebetween. The heat sinks have fins projecting in three directions, the fourth direction being accounted for by the LEDs, and are rotatable about their longitudinal axes to adjust direction of light propagation. The heat sinks are arrayed in an arc, so that the outside heat sinks shield observers from direct glare from opposed heat sinks. Heat sinks may be extruded to form cooling fins and slots which may receive fasteners such as screws.

Abstract: A light-emitting device includes a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer and having a plurality of V-pits. The light-emitting device further includes a layer-quality improvement layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer and having a plurality of V-pits with substantially same size and shape as the plurality of V-pits of the active layer, wherein layer-quality improvement layer is a group III-V semiconductor layer including Al or In. Due to the improved layer quality, the luminescent quality of the light-emitting device is improved.

Abstract: The present invention relates to a light-emitting diode (LED) lighting fixture, which comprises a radiator, a housing and an LED module mounted at the bottom of the radiator, and further comprises a lamp holder being fixed on the top of the radiator and running through the housing, an elastic element clamped between the lamp holder and the housing, and a lamp shade encircling the LED module. The radiator includes a chassis, a body extended upwards from the chassis, and a plurality of radiating fins; one side of the radiator close to the bottom is provided with a recess.

Abstract: LED light sources utilized in a street lamp include a base seat, a lamp shade mounted on the base seat, and a top housing coupled with the base seat. The base seat includes a plurality of first heat dissipation columns integrated with the base seat. The lamp shade includes a plurality of the LED light sources. The top housing includes a plurality of second heat dissipation columns integrated with the top housing. The base seat, the first heat dissipation columns, the top housing, and the second heat dissipation columns are made of a polyamide resin containing a graphite powder.

Abstract: Retrofit floodlight systems, brackets and related methods are provided for retrofitting existing floodlight systems having a floodlight enclosure and a superseded light source to include solid-state lighting functionality. An example retrofit floodlight system includes a floodlight enclosure having a base receptacle and a cover coupled to the base receptacle to define an interior cavity and at least one light generation assembly including an array of solid-state lighting elements operable to collectively emit a flood of light from the floodlight enclosure which is mounted within the floodlight enclosure by a retrofit bracket.

Abstract: The invention provides an LED lighting device having a plurality of LED modules. Each LED module includes a housing structure, a plurality of LEDs disposed on the housing structure and a power converter that provides power to the LEDs. Each power converter of the LED modules operates independently. The LED lighting device of the present invention is more difficult to fail and may effectively reduce maintenance costs.

Abstract: Programmable module (1) for a modular installation (IN), comprising:—a support base (2) delimited by edges (20);—at least one signal transmitter (3);—at least one measurement sensor generating local-measurement data;—at least one controller (4) driving the transmission of the signals and receiving the local-measurement data;—at least two connectors (5) fixed on the edges of said base and exhibiting an electrical power supply interface, and a bidirectional communication interface connected to the controller and exhibiting a communication input and a communication output; where at least one of said connectors may be connected with a connector of a neighbouring module in the modular installation so as to allow a bidirectional communication between the controller of said module and the controller of said neighbouring module and a distributing of the electrical power supply between the modules. The present invention finds an application in the field of luminous installations.

Abstract: A lighting system includes a first elongate channel configured for mounting to a structure, a second elongate channel configured for being temporarily coupled to the first elongate channel and forming a substantially enclosed elongate space between the first and second elongate channels. A plurality of led lights, each having a translucent watertight housing, at least one led and a integrated circuit within the translucent housing, are coupled to the second elongate channel with each of the translucent watertight housings exposed through the second elongate channel. A controller is electrically connected to a plurality of segments of wire to communicate with each of the plurality of integrated circuits and has a plurality of programmable functions, each function providing at least one of a desired light color for each of the plurality of led lights, duration of illumination and timing of illumination.

Abstract: A ring light module having a plurality of optoelectronic semiconductor components for producing electromagnetic radiation, a reflector of the ring light module comprising a reflective surface, and a support. The semiconductor components are mounted on the support. In a plan view of a main radiation side of the ring light module, the reflector comprises at most two planes of symmetry. The reflector tapers in the direction towards the main radiation side. At least some of the main emission directions of adjacent optoelectronic semiconductor components are oriented differently from each other, and the main emission directions point towards the reflective surface.

Abstract: A semiconductor light emitting element includes a transparent substrate and a plurality of light emitting diode (LED) structures. The transparent substrate has a support surface and a second main surface disposed opposite to each other. At least some of the LED structures are disposed on the support surface and form a first main surface where light emitted from with a part of the support surface without the LED structures. Each of the LED structures includes a first electrode and a second electrode. Light emitted from at least one of the LED structures passes through the transparent substrate and emerges from the second main surface. An illumination device includes the semiconductor light emitting element and a supporting base. The semiconductor light emitting element is disposed on the supporting base, and an angle is formed between the semiconductor light emitting element and the supporting base.

Abstract: An LED lighting device includes a light emitting assembly including at least one LED and a wireless network interface connecting the LED lighting device to a network. The wireless network interface includes a RF transceiver. An antenna is in electrical communication with the RF transceiver. A thermally conductive housing receives the light emitting assembly, the thermally conductive housing in thermal communication with the at least one LED. In one aspect the thermally conductive housing is formed of a thermally conductive and electrically nonconductive material. In another aspect, the thermally conductive housing includes a first portion attached to a second portion, wherein the first portion is formed of a first, thermally conductive material and defines an interior cavity receiving the wireless network interface. The second portion is formed of a second, electrically nonconductive material and defines an aperture allowing optical output of the at least one LED to pass therethrough.

Abstract: The LED lamp tube contains a tubular body, a lighting module, end circuit boards, positioning elements, and caps. The lighting module contains a circuit board attached to a metallic base, LED chips on the circuit board, and first connectors at the ends of the circuit board. Each end circuit board contains two conductive pins and a second connector. Each positioning element has first through holes on an end surface. Each cap has a cylindrical shape with second through holes. The lighting module is threaded into the tubular body. Each end circuit board is plugged into a positioning element which in turn is plugged into a cap, and the conductive pins run through the first and second through holes. Each cap is joined to an end of the tubular body, and each first connector of the lighting module is connected to the second connector of an end circuit board.

Abstract: An elongate tubular lighting assembly having a body with a length between spaced first and second ends. The tubular lighting assembly has a source of illumination and first and second connectors respectively at the first and second body ends. The first connector has cooperating first and second parts having first and second surfaces. The first and second connector parts are configured so that the first and second surfaces are placed in confronting relationship to prevent separation of the first and second connector parts with the body in an operative state as an incident of the first connector part moving relative to the second connector part from a position fully separated from the second connector part in a substantially straight path that is transverse to the length of the body into an engaged position.

Abstract: A lighting assembly that includes an LED source that generates a light cone (solid angle); and a transparent near field lens having a front surface, a collimating surface, and an aspherical groove. The collimating surface collimates the light cone into a beam that reflects off of the front surface toward the aspherical groove, and the aspherical groove directs the beam away from the lens as an exit cone from a virtual focal point, positive virtual focal ring or a negative virtual focal ring. The exit cone may be evenly distributed, substantially forward or substantially rearward from the virtual focal point or virtual focal ring. Parabolic or aparabolic reflectors can be employed with lighting assemblies having a virtual focal point or virtual focal ring, respectively, to reflect the exit cone in a vehicular exterior lighting pattern.

Abstract: An LED lead frame mounted on a platform of a lightbulb includes a metal polarity substrate, a metal retaining substrate and a casing for partially covering the metal polarity substrate and the metal retaining substrate. The metal retaining substrate is a sheet bent into a disposing portion and a carrying portion, and an included angle ?1 is defined between the portions, and an abutting surface of the disposing portion abuts the platform, and a portion of the carrying portion not covered by the casing is provided for installing at least one LED chip. The metal polarity substrate is bent to form an included angle ?2, and ?1=?2, and 93°??1?130°. The casing has a support member formed on the casing and protruded in a direction opposite to the direction of bending the metal retaining substrate. The LED lead frame enhances the illumination angle and light uniformity of the lightbulb.

Abstract: A lamp reflector includes a body including a plurality of sheets; a plurality of heat sinks connecting the sheets to form a corn shape; and a plurality of light emitting modules disposed on a surface of the heat sink in such a manner that the light emitting modules face an inner space of the body, wherein each of the light emitting modules includes: a substrate fixed to the surface; and a plurality of light emitting diodes disposed on the substrate and electrically connected to each other by the substrate.

Abstract: A device for securing a source of LED light to a heat sink includes an LED light source engaging surface that is arranged and configured to engage at least a portion of the source of LED light and which is provided with an integrated force applying spring. Further, the device may include a continuous metallic path extending between the sources of LED light and the surface.

Abstract: A replacement light tube for replacing a fluorescent light tube includes a bulb portion extending between a first end and a second end, the bulb portion comprising a support structure, a plurality of white light emitting diodes (LEDs) and an elongate light-transmissive cover. The support structure has a first surface extending between the first end and the second end. The plurality of LEDs are supported by the first surface and arranged between the first end and the second end. The elongate light-transmissive cover extends between the first end and the second end and over the first surface of the support structure. A first end cap and a second end cap are disposed on the first end and the second end, respectively, each configured to fit with a socket for a fluorescent light tube. A power supply circuit is configured to provide power to the plurality of LEDs.

Abstract: An assembly for the dissipation of heat from an illumination structure of the type which includes one or more LEDs and a driver assembly operatively connected to the one or more LEDs. A primary heat sink is disposed in heat transferring relation to the components of a remainder of the illumination structure. A mount, also formed of a heat conductive material, is disposed in supporting or connected relation to the driver and in heat transferring relation to the primary heat sink. A compartment structure includes a hollow interior chamber, having heat insulating fluid disposed therein, and disposed in adjacent and/or aligned relation with the one LED so as to insulate it from heat generated by the driver assembly and other components of the light structure. The mount, primary heat sink and compartment structure are cooperatively disposed so as to define a flow path of heat away from the one or more LEDs to an area where it is dissipated exteriorly of the illumination structure.

Abstract: An LED lightbulb is disclosed. The LED lightbulb includes an LED array mounted to a circuit board having at least two different sets of LEDs that emit correspondingly different spectra when energized. The LED lightbulb also include a interior reflective surfaces and a dome shaped diffuser lens that eclipses a portion of the LED array. The LED array, the interior reflective surfaces and the dome shaped diffuser lens are position within a cavity formed by a housing with cooling fins and an outside diffuser lens. The LED lightbulb also include a base portion for electrically coupling to a power source of a light fixture that is either an incandescent light fixture or a fluorescent light fixture. In accordance with the embodiments of the invention the LED lightbulb include a driver circuit for providing output power to the LED array from a power source having a ballast or a power source without a ballast.

Abstract: A compact recessed lighting system is provided. The lighting system includes a light source module, a heat sink, a lens, a set of electrical contacts, and a set of trims. Each of these elements of the lighting system may be coupled to an integrated interface module. The recessed lighting system provides a reduced set of components while ensuring adaptability and easy installation into a structure. In particular, by including an integrated interface module that allows the light source module, the set of trims, the lens, and the heat sink to be easily replaced with minimal tools and minimal fasteners, the recessed lighting system described herein provides a more efficient and user friendly design in comparison to traditional systems.

Abstract: A light emitting diode (LED) module is in thermal communication with front and back heat sinks for dissipation of heat therefrom. The LED module is physically held in place with at least the back heat sink. A mounting ring and locking ring can also be used to hold the LED module in place and in thermal communication with the back heat sink. Key pins and key holes are used to prevent using a high power LED module with a back heat sink having insufficient heat dissipation capabilities required for the high power LED module. The key pins and key holes allow lower heat generating (power) LED modules to be used with higher heat dissipating heat sinks, but higher heat generating (power) LED modules cannot be used with lower heat dissipating heat sinks.

Abstract: A light source apparatus according to the present invention, includes a substrate, a plurality of light source units provided on the substrate, a partition wall provided on the substrate and surrounding each of the light source units, and an optical sensor disposed between two or more of the light source units that are adjacent to each other, wherein the number of optical sensors is lower than the number of light source units.

Abstract: An LED lamp has a PCB at least partially made of metal and a base configured to receive the PCB in a slot formed on the base. The base has a base top surface and the slot has a tapered cross-section. A first sidewall is formed in the slot. The first sidewall is formed at a first sidewall angle that is less than 90°. A second sidewall is formed in the slot. The second sidewall is formed at a second sidewall angle. A top protrusion is formed on a base top surface. The top protrusion has a top protrusion first position and a top protrusion second position. A pair of edges are formed on the PCB, namely a first edge formed on the PCB and a second edge formed on the PCB. The first edge is tapered to engage the first sidewall.

Abstract: A light-emitting device includes a lead frame, a white resist, a light-emitting element, and a wire. The white resist is provided on the lead frame to be in contact with the lead frame. The white resist has an opening to expose the lead frame. The light-emitting element is disposed on the white resist and includes a transparent substrate and a semiconductor layer. The transparent substrate is bonded to the white resist via a bonding member. The semiconductor layer is provided on the transparent substrate. The wire connects the light-emitting element and the lead frame at the opening.

Abstract: The Light Emitting Diode (LED) lamp is adapted for mounting in a fluorescent tube mount having a selectively activatable magnetic ballast powering two pairs of sockets with AC power upon activation. The LED lamp has a body having connectors at both opposite ends adapted to the corresponding pair of sockets, at least one LED string extending along at least a portion of the body, a driver inside the body connecting the connectors to the LED string, the driver including a transistor, an inductor, and a rectifier in a switch mode converter configuration, for converting the AC power of the sockets into a DC power of a voltage adapted to power the LED string; and a pulse mode controller for controlling the transistor in an intermittent manner upon activation of the multiple fluorescent tube mount, until conduction across the at least one LED string is achieved.

Abstract: An illumination apparatus includes a frame, an optical base plate, a light source and an optical film. The optical base plate is disposed in the frame and has a first protrusion portion at the center of the optical base plate. The first protrusion portion has at least a reflective surface and a top surface, which are connected with each other. The light source is disposed in the frame and located adjacent to the periphery of the optical base plate. The light source is disposed corresponding to the reflective surface and has a plurality of light-emitting elements. Each light-emitting element has an optical axis direction, and the optical axis directions extend toward the first protrusion portion. The optical film is disposed at the frame, and the first protrusion portion of the optical base plate protrudes toward the optical film.

Abstract: Slotted heatsinks comprise a base containing a plurality of slots adapted to removably secure light emitting devices, wherein each of said slots comprises at least four cavities; and a plurality of fins adjacent to and/or on top of said slots for removing heat generated by the light emitting devices. The slots may have a t-shaped or +-shaped cross section. Opposing sidewalls may also be provided together with one or more active cooling devices and various covers for the components. Related systems and methods are also provided. When combined with a suitable light source, such devices are useful for a wide range of applications, including, for example, as aquarium or grow lights.

Abstract: An operating device (1) for operating an illuminant (2) is proposed, having: an energy storage unit (3) for storing electrical energy, a charging circuit (4), requiring the supply of a mains voltage (Vin), for charging the energy storage unit (3) during a charging mode of operation, a driver circuit (7), supplied with power by means of the energy storage unit (3) during a storage mode of operation, for operating the illuminant (2), and a control unit (8) for activating the charging mode of operation or the storage mode of operation independently of the state of the mains voltage (Vin), particularly independently of the level of the mains voltage (Vin).

Abstract: A lighting device for a vehicle lamp has a base, a substrate, a conducting rib and an LED module. The substrate is mounted in the base. The conducting rib is perpendicularly mounted on the base and has a first heat-dissipating surface and a second heat-dissipating surface opposite to the first heat-dissipating surface. The conducting rib provides two heat dissipating paths to increase the heat dissipating efficiency. The LED module is mounted on a distal end of the conducting rib and extends out of the base, and the LED module is electrically connected to the substrate. The LED module extends out of the base to accurately correspond to a reflection space around a lamp seat and improve the light-homogenizing effect of the vehicle lamp.

Abstract: A modular light source comprising a base unit, LED Printed Circuit Assembly comprising a plurality of LEDs, temperature sensor, Power Supply Printed Circuit Assembly, and optics portion wherein the light emitted has a normal distribution and the flux at 55° off normal exceeds 50% of the flux at 0°.

Abstract: An LED lighting device includes a light emitting assembly including at least one LED and a wireless network interface connecting the LED lighting device to a network. The wireless network interface includes a RF transceiver. An antenna is in electrical communication with the RF transceiver. A thermally conductive housing receives the light emitting assembly, the thermally conductive housing in thermal communication with the at least one LED. In one aspect the thermally conductive housing is formed of a thermally conductive and electrically nonconductive material. In another aspect, the thermally conductive housing includes a first portion attached to a second portion, wherein the first portion is formed of a first, thermally conductive material and defines an interior cavity receiving the wireless network interface. The second portion is formed of a second, electrically nonconductive material and defines an aperture allowing optical output of the at least one LED to pass therethrough.

Abstract: A luminaire with various sensing and communication capabilities is provided. According to one aspect, the luminaire can include a housing, a light source disposed in the housing, a support element coupled to and extending downward from the housing, one or more communication modules disposed within the support element, and a motion sensor coupled to the support element. The one or more communication modules facilitate communication with a local controller disposed in the luminaire, a control system, and/or other luminaires. The motion sensor is configured to detect motion within a pre-determined range of the luminaire. The light source is configured to emit light responsive to the motion sensor detecting motion within the pre-determined range.

Abstract: Illumination devices are disclose having at least three thermally conductive fins that are attached to each other adjacent a central location and extend outward from the central location, with each of the fins having an opposed pair of major surfaces. The devices include a plurality of light-emitting diodes that emit light and produce heat, with at least one of the light-emitting diodes being mounted on each of the fins. The heat from the light-emitting diode flows along the fin and is radiated from at least one of the major surfaces, while the light from the light-emitting diode is reflected from the major surfaces of adjacent fins and exits the device.

Abstract: A lighting module includes a main circuit board, a plurality of lighting units, and a driving unit. The main circuit board forms a plurality of through holes. Each lighting unit includes a transparent substrate, a circuit layer, a plurality of light emitting diode (LED) dies, and a transparent resin layer. The transparent substrates are arranged on the main circuit board, and then a predetermined angle spans between a first surface of each transparent substrate and the main circuit board. The circuit layer and the LED dies are placed on the first surface, and the LED dies are electrically connected to the circuit layer. The transparent resin layer covers the LED dies. The driving unit includes a driving circuit board including a plurality of protrusions. The protrusions are respectively inserted into the through holes such that the driving circuit board is substantially perpendicular to the main board.

Abstract: Provided are a light emitting apparatus and a surface light source apparatus having the same. The light emitting apparatus comprises a package body, a first color light emitting part in a first cavity of the package body, and a second color light emitting part in a second cavity of the package body. The package body comprises a plurality of cavities.

Abstract: An LED unit which serves as an illumination light source includes: a mounting board on which a light-emitting element, which emits light frontward, is provided; a support disposed behind the mounting board; and a case disposed so that the mounting board is sandwiched in a longitudinal direction by the case and the support. The case includes a restricting portion which restricts sideward movement of the mounting board.

Abstract: A lighting assembly includes an LED light source assembly and a unitary light-transmissive solid reflector optical element. The reflector optical element has a light output surface and n light-transmissive solid optical sub-elements having n-fold rotationally symmetrical about a central axis. Boundaries between adjacent optical sub-elements extend radially outward from the central axis. Each optical sub-element has a reflective surface positioned opposite the light output surface on the optical sub-element and shaped to create an internal reflection effect. The LED light source assembly has an LED light source for each optical sub-element. The LED light sources are positioned along an outline near the light output surface to direct light from each LED light source towards the reflective surface of the respective optical sub-element such that the light is reflected by the reflective surface to form an output light that exits the reflector optical element through the light output surface.

Abstract: A lighting assembly for an existing linear fluorescent fixture includes a support, at least two opposing light emitting diodes (LED) on respective sides of the support configured to direct light in opposite general directions, a housing configured to cover the support and the at least two opposing LEDs; and end caps including electrical connectors to connect to electrical connections of the existing linear fluorescent fixture.

Abstract: An LED lamp that can take the place of incandescent lamps. An elevated light source is positioned above a screw-type base. A first plurality of LEDs is connected in a series on one side of a flat substrate and a second plurality of LEDs, equal in number to the first, is connected in series on an opposite side of the substrate. Each LED of the first and second plurality of LEDs is mounted proximate a heat sink and a drive circuit is provided for the LEDs, with the drive circuit being located proximate and electrically connected to the screw base.

Abstract: A system for assembling a luminaire comprising a housing, a computer-controlled manipulation device, and a parts repository defined within the housing and configured to carry a plurality of light modules, a plurality of luminaire housings of various luminaire housing types, and a plurality of optics of various optic types. The system further comprises a programming device configured to program a light module of the plurality of light modules to emit light having lighting characteristics. Each of the light modules are configured to be removably couplable to the computer-controlled manipulation device. The luminaire housings each comprise a locking tab configured to permit the respective light modules to engage therewith, thereby enabling attachment of the respective light modules to the respective luminaire housings. Each of the optics comprise a locking tab configured to permit a respective luminaire housing to engage therewith, enabling attachment of the respective luminaire housing to the respective optic.

Abstract: A fluorescent lamp type light emitting apparatus is provided. The light emitting apparatus comprises a cover, a light emitting module, radiation pads, and cap parts. The cover comprises a first cover and a transmissive second cover coupled to the first cover. The light emitting module comprises a plurality of light emitting diodes in the cover. The radiation pads are disposed on the light emitting module. The cap parts comprise electrode terminals at both ends of the cover.

Abstract: A solid state lighting apparatus comprising a base unit, LED Printed Circuit Assembly comprising a plurality of LEDs, conductive enhancing structure, temperature sensor, Power Supply Printed Circuit Assembly, and optics portion comprising at least one of a lens, holding device, mirror, reflector and/or other optical components. A solid state lighting apparatus is adapted for existing luminaire shapes and is applicable for retrofitting installed luminaires.

Abstract: Multi-configurable, high luminous output light fixture systems, devices, and methods are disclosed. Light fixtures can be configured to produce variable light emission outputs and patterns and can include LED packages wherein at least one can be movable with respect to another of the LED packages. In addition, a power supply can selectively dim or turn off at least one of the LED packages. The light fixtures disclosed herein can be used in both high bay and low bay light fixtures.

Abstract: A lamp including the following elements is provided. A housing has an assembling opening and an electrical base on two ends thereof, wherein the housing has an inner wall and a portion of the inner wall adjacent to the assembling opening is an air-guiding wall. A cooling fan has a casing disposed at the assembling opening and forming an air channel, a fan wheel rotatably arranged in the air channel, and two partitioning boards between the air-guiding wall and the air channel so as to define two first air-guiding openings and a second air-guiding opening. A light-emitting module is arranged in the housing and opposite to the fan wheel. Accordingly, the present lamp does not require forming any air inlet or air outlet on the housing, and thus provides a simplifier structure.

Abstract: An LED connector half (500) mates with a wire connector half (300) to connect a light strip (100) comprising LEDs (115) to a pair of wires. The LED half includes a hinged top (700) with an opening (705) to admit an end LED on the strip when the top is closed, securing the strip to the connector half without blocking the LED. The wire half secures a pair of wires (315) to terminals (305) in a housing (310). The wire half is inserted into the LED half, connecting the Electrodes and terminals. The halves are held together by a tongue (320) and socket (800). In another aspect, a connector (1100) joins two light strips by capturing the LEDs at the ends of the strips in openings (1110) and clamping conductive electrodes (1140) against the strips by closing a lid (1105) against the body, without obscuring LED light output.

Abstract: Provided is a lighting device, including: a light source module comprising at least one light source on a printed circuit board, and a resin layer in which the light source is embedded; a light reflection member which is adjacent to at least any one of one side surface and the other side surface of the resin layer; and an optical plate comprising a side wall which is closely adhered to the light reflection member, and an upper surface which covers an upper part of the light source module, wherein a haze of the optical plate is less than 30%.

Abstract: A recessed LED light fixture is provided. The fixture includes a housing assembly, a power supply, and a light source. The power supply is positioned below the light source relative to an opening of the housing from which light from the light source is emitted. The power supply is positioned on an exterior side of the housing and proximate a lower-most extent of the housing.

Abstract: A retrofitting kit for retrofitting an existing troffer light fixture having a troffer housing. The kit includes an adaptor bracket and a door assembly. The adaptor bracket includes a channel configured to rest on a T-bar of a ceiling system between the T-bar and the troffer housing, a slot configured to receive a portion of a troffer door assembly, and a latch surface configured to engage with a latch. The door assembly includes a latch configured to engage the latch surface of the adaptor bracket, a hinge configured to interface with the slot of the adaptor bracket, a housing including the latch and the hinge, and a light source within the housing.

Abstract: LED lighting devices and fabrication methods are provided. An LED lighting device includes a heat dissipation lamp cup including a hollow structure, a driving power supply casing socket configured within the heat dissipation lamp cup to form a ventilation gap between the driving power source casing and an inner wall of the heat dissipation lamp cup, and a lamp holder configured on top of the heat dissipation lamp cup. The lamp holder includes one or more sidewalls forming a ventilation channel passing through the lamp holder. The ventilation channel is connected to the ventilation gap for air circulation. The LED lighting device also includes a substrate configured on an outer surface of each of the one or more sidewalls of the lamp holder and a plurality of LED light sources mounted on the substrate.