Abstract: An LED growth light and method for providing light to plants incorporating an LED arrangement, a growth light housing, and a power source. The LED arrangement includes LEDs arranged in individually powered columns to provide relatively uniform disbursement of the light to the plants. The housing includes an accessory rail to attach a variety of optional accessories and internal cooling fins to cool the housing to prevent damage to the power supply and/or to prevent overheating the plants. In addition, the housing includes a fan and end caps which permit the movement of air for the displacement of heat and reduce the intake of moisture or debris into the interior of the LED growth light.

Abstract: A modular lighting fixture includes a modular housing portion and one or more separate modular lighting components arranged adjacent to the modular housing portion. The separate modular lighting component(s) can include a lighting assembly having a plurality of LED devices and a plurality of optics. Each optic is secured relative to one of the plurality of LED devices. The lighting fixture also includes at least one securement assembly that secures the modular housing portion and the modular lighting component(s) together. More specifically, the securement assembly may include at least one end plate that secures the modular housing portion and the separate modular lighting component(s) together.

Abstract: A plant lamp includes a radiator member, a power box, and lamp beads. The radiator member includes an upper surface, a lower surface opposite to the lower surface, and side surfaces connected between the upper surface and the lower surface. The power box and the lamp beads are arranged on the upper surface and the lower surface respectively. The power box is electrically connected to the lamp beads. The plant lamp further includes at least one power socket electrically connected to the power box and a wiring module. At least one side surface of the radiator member is provided with a fixing seat, the fixing seat defines a slot capable of engaging with a quick lock. When the two plant lamps are to be assembled, the fixing seats of the two plant lamps close to each other, and the quick lock runs through the slots of the fixing seats of the two plant lamps to lock the two plant lamps together.

Abstract: Multisource LED systems for providing high intensity narrow spectrum light are provided. In one example embodiment, a lighting system includes one or more first light sources configured to emit high intensity narrow spectrum (HINS) light. The lighting system can include one or more second light sources configured to emit non-HINS light. The system can include a power circuit configured to provide power to the one or more first light sources and the one or more second light sources.

Abstract: An adjustable clip-on base for installing an LED support into a lighting enclosure includes a support clip portion for removably attaching the adjustable clip-on base onto the LED support. The adjustable clip-on based also includes a mating structure portion configured for mating with the lighting enclosure to mount the LED support into the lighting enclosure. The support clip being is positionable on the LED support over a range of positions to alter the distance that the mating structure portion extends from the end of the LED support so that the combined length of the adjustable clip-on base and the LED support can be adjusted to fit in the lighting enclosure.

Abstract: A strip light has an elongated light module that mounts to a mounting frame with a lamp body bracket. The lamp body bracket is elongated and has a front mounting frame panel, a rear mounting frame panel, a right mounting frame panel, and a left mounting frame panel extending from a lamp body bracket base panel of the lamp body bracket. A first rotating shaft lock is mounted to the lamp body bracket base panel on a first axis of rotation. A second rotating shaft lock is mounted to the lamp body bracket base panel on second axis of rotation. The light module is secured to the lamp body bracket by a pair of rotating locks. An LED light board has LED chips. A hook groove system with a first groove and a second groove is mounted or formed underneath the LED light board.

Abstract: A light box includes a LED light tube including a first cap, a second cap, a first light body and a second light body. The first light body has a first main light emitting direction and the second light body has a second main light emitting direction. The first cap and the second cap each have two pins. The first cap and the second cap is fixed at two ends of the first light body providing a power to the first light body and the second light body. The angle between first main light emitting direction and the second main light emitting direction is adjustable by adjusting a relative position between the first light body and the second light body.

Abstract: Provided is a light fixture comprising: a) a body, the body having a central portion and two side portions, each of the two side portions situated on one side of the central portion, the two side portions and the central portions running parallel to each other, the central portion recessed in an upward direction in relation to the two side portions, the recess of the central portion forming a ballast room inside of the body; b) two end caps, each end cap attached to an end of the body; c) a plurality of LED (light emitting diode) boards attached to an inside of the side portions of the body; d) one or more ballasts inside of the ballast room; e) a ballast room cover for covering the ballast room; and f) two rectangular-shaped lenses, each lens covering the LED boards attached to the side portion of the body. Each lens can contact the body on one of its long sides and contact the ballast room cover on its other long side.

Abstract: An LED tube lamp includes a glass lamp tube, two end caps, an LED light strip, a power supply, and a reflective film. At least a portion of an inner surface of the glass lamp tube is formed with a rough surface, and the roughness of the rough surface is higher than that of the outer surface. The glass lamp tube includes a main body region and two rear end regions, each of the two rear end regions coupled to a respective end of the main body region and each of the two end caps coupled to a respective rear end region. A length of the light strip is longer than the length of a main body region of the glass lamp tube. Each of the two end caps is coupled to a respective end of the glass lamp tube by a gel. The LED light strip is disposed on an inner surface of the glass lamp tube with a plurality of LED light sources mounted on the LED light strip.

Abstract: The present invention relates to a multi-mode series light controlling system, including a main control device that includes a front plug, a control unit, a mode switching key, a tail plug, and a connection module. The tail plug is electrically connected to the front plug through the control unit. The connection module is able to connect with multiple series lights simultaneously. The front plug is used to connect an AC power source. The control unit generates a lighting control signal according to the mode switching key and provides it to the connection module through the tail plug. The main control device provides functions to control multiple series light to switch between on, off, and different lighting patterns. Therefore, the controlling system is a progressive replacement for multiple control switches for multiple series light, achieving the purpose of managing series lights with one device.

Abstract: A modular solid state high bay lighting fixture is provided herein which includes at least two lighting modules, each including a body configured to define an open channel along one face thereof with a lens or diffuser at least partly overlying each of the open channels. Bottom and upper plates extend between the lighting modules with the upper plate being spaced from, and at least partially overlying, the bottom plate so that a chamber is formed therebetween. The bottom plate is movable relative to the bodies of the lighting module from a first state, where the bottom plate is edge supported, to a second state, where one edge is clear of the bodies allowing the bottom plate to rotate.

Abstract: An LED tube lamp includes a lamp tube, two end caps, an LED light strip, a power supply, and a reflective film. At least a portion of an inner surface of the lamp tube is formed with a rough surface, and the roughness of the rough surface is higher than that of the outer surface. Each of the two end caps is coupled to a respective end of the lamp tube by a gel. The LED light strip is disposed on an inner surface of the lamp tube with a plurality of LED light sources mounted on the LED light strip. The power supply is disposed at one or two of the end caps. The power supply is electrically connected to the plurality of LED light sources. The reflective film is disposed on the inner surface of the lamp tube.

Abstract: A lighting apparatus that can be retro fitted is disclosed. The lighting apparatus comprises a housing and a plurality of illuminating units. Each of the illuminating units comprises a connector used to couple the illuminating unit to the housing. The plurality of illuminating units is coupled to the housing at equal distance and in series.

Abstract: A luminaire includes a housing having a back wall and several side walls, a diffuser provided at a front of the housing, and a plurality of LED strips disposed on the back wall of the housing. The height of the housing is less than 3 inches, with internal dimensions such that X:Y=1:7 and Z is <1.5 inch, wherein X is the minimum distance between one of the LED strips and the diffuser, Y is the maximum distance, along a plane parallel to the back wall, between a center of one of the LED strips to an edge of the back wall, and Z is the distance, along a plane parallel to the diffuser, between an edge of the back wall and a front edge of the side wall sharing the edge with the back wall. The LED strips are configured to have a Full Width Half Max beam angle ?>100°, and emit <50 lumens.

Abstract: The present invention provides an elastically-buckled lamp, comprising a mounting base and a lamp body; there are more than three elastic buckles provided on the mounting base; arc-shaped grooves adapted to the elastic buckles are provided at an upper end of the lamp body, and the elastic buckles can be elastically deformed in a radial direction of the arc-shaped grooves and then inserted and clamped into the arc-shaped grooves; and when provided in the arc-shaped grooves, the elastic buckles are capable of sliding along the arc-shaped grooves to enable the lamp body to rotate relatively to the mounting base, so that it is easy to adjust mounting angles. Moreover, it is easy to mount and beautiful in appearance.

Abstract: The subject invention provides a surgical instrument support assembly which includes an enclosure defining an opening; a light transmissive pane located at least partially across the opening and defining a support surface; and, a light source located inside the enclosure for generating light to be transmitted through the light transmissive pane. A sterilizable light transmissive surgical instrument support may be also provided to be disposed over at least a portion of the light transmissive pane. Advantageously, with the subject invention, an assembly is provided which includes a sterilized surface for supporting surgical instruments which is backlit. With this arrangement, surgical instruments may be supported and illuminated from beneath to aid a medical practitioner in identifying the surgical instruments.

Abstract: A standing lamp includes a stand; first and second luminaire modules, each comprising a plurality of light emitting elements (LEEs) distributed along a first direction, a light guide and a housing configured to house at least the LEEs and to support the light guide; and a mount attaching the first and second luminaire modules to the stand.

Abstract: An LED bar lighting with uniform illumination includes at least two LED chips, and a bar lens. Each of at least two LED chips includes an optical axis. The bar lens includes an in-light surface profile line and an out-light surface profile line in a cross section perpendicular to the axial direction of the bar lens. The in-light surface profile line includes a first arc and tow second arcs arranged two sides of the first arc. The first arc is tangent to the second arc and the radius of the first arc is smaller than that of the second arc. The radius of the out-light surface profile line is gradually reduced toward two sides thereof from an intersection of the out-light surface profile line and the optical axis. The radius of the out-light surface profile line at the intersection of the out-light profile line and the optical axis is infinite, and the refraction angle at both end points of the out-light surface profile line is 0 degree.

Abstract: An LED adapter to retrofit non-LED light fixtures to accept LED lights without electrical rewiring. The LED adapter includes a multi-use base plug that is configured to connect to the socket on the non-LED light fixture and a universal LED plug configured to connect to the socket on an LED light. The multi-use base plug may be a four-pin square base, a two-pin (aligned or off-set) square base, a two-pin tombstone base, a two-pin oval base, or a threaded base. The adapter may also include a power regulator disposed between the universal LED plug and the multi-use base plug. The power regulator includes one or more resistor to adjust the current or voltage supplied by the non-LED light fixture so as to be compatible with the LED light fixture.

Abstract: An LED high bay light comprises a plurality of LED illuminant engines arranged abreast and alternately; each of the LED illuminant engine comprises an LED strip-shaped illuminant and an optical lens set covering the LED strip-shaped illuminant; the optical lens set comprises a plurality of strip-shaped optical lenses arranged conterminously; and two adjacent strip-shaped optical lenses are connected to each other through a mutual cooperation of the stepped spigots arranged oppositely. Each illuminant engine thereof adopts a structure of strip-shaped optical lens set with multiple sections, greatly reducing the difficulty in making molds and the cost for manufacturing parts.

Abstract: A color cover/change/mixture structure of a light bulb/tube/fixture includes an enclosure, a base, a cold cathode fluorescent lamp tube, and a color cover. The enclosure is a tubular body having a non-light-transmitting or light-transmitting top and a light-transmitting bottom. The base has a bottom surface having retention pawls for engaging and retaining the cold cathode fluorescent lamp tube. The cold cathode fluorescent lamp tube, after combined with the base, is disposed and mounted in the enclosure. Heads are mounted to two ends of the enclosure. The color covers have different colors and are selectively mounted to the enclosure to change the color of light emitting from the cold cathode fluorescent lamp tube.

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 LED lighting system is disclosed, which generally consists of an enclosure, one or more LED modules, one or more transformers, and one or more drivers. A lamp assembly is disclosed, which generally consists of one or more vertically oriented LED chips, thermally conductive shells, and a thermally dissipating means positioned at the back of the LED chips. An LED module is disclosed, which generally consists of a lamp assembly, one or more reflectors and modules caps. A method of controlling light intensities is disclosed, which generally consists of method of decreasing light intensities in areas with little occupancy while minimizing user annoyance resulting from drastic light intensity fluctuations. A universal mounting bracket is disclosed, which generally consists of a fixture plate, mounting plate, and an adjustable means.

Abstract: A light source driving device includes a transformer, a rectifying diode, a filter, and an open loop preventing circuit. The transformer has a primary winding part including first and second external input terminals configured to receive external power from a ballast stabilizer and a coil having an impedance level set to allow the ballast stabilizer to output a normal amount of power, and a secondary winding part electromagnetically coupled to the primary winding part to transform received external power. The rectifying diode rectifies power from the secondary winding part, and the filter filters the rectified power from the rectifying diode. The open loop preventing circuit provides a closed loop to the filter such that power stored in the filter is applied to the output terminal when the rectifying diode is turned off.

Abstract: The present disclosure relates generally to a light emitting diode (LED) luminaire. In one embodiment, the LED luminaire includes a linearly extended enclosure having an interior volume, one or more sides and a light exiting portion along a length of the linearly extended enclosure, wherein the one or more sides each comprise an inside surface and an outside surface, wherein at least a portion of the linearly extended enclosure comprises an extruded optically clear plastic, one or more first LEDs mounted on the inside surface of the one or more sides of the linearly extended enclosure and a reflector coupled to the interior volume of the linearly extended enclosure, wherein the reflector redirects light from the one or more first LEDs.

Abstract: A method of retro-fitting an existing luminaire housing comprises the steps of removing lighting components from the existing housing, fastening a first powertray retaining assembly to an end cap of the existing housing, fastening a second powertray retaining assembly to a second end cap of the existing troffer, telescoping a powertray to a size allowing the powertray to be moved through an opening in the existing housing, inserting the powertray through the opening in the existing housing and retaining the powertray on one of the first and second retaining assemblies, telescoping the powertray to engage the other of the first and second retaining assemblies and, positioning a diffuser in the troffer. A retro-fit luminaire assembly is also disclosed.

Abstract: A light fixture includes a housing with a channel configured to contain a driver for driving one or more light emitting diodes located outside the channel. The housing includes slots configured to receive and secure a lens. The light fixture further includes a removable channel cover, tabs located along the length of the channel and adjacent to the channel on the housing, and a lens bar having a first flange configured to secure the lens and a second flange configured to be inserted underneath the tabs. The lens bar is secured in place with the second flange underneath the tabs by the channel cover which prevents the lens bar from moving laterally with respect to the tabs. The slots, the first flange, and a flange running the length of the light fixture perpendicular to the slots are configured to cover the edges of the lens when installed.

Abstract: An extruded housing using a single polymeric material to form an opaque body portion that defines an open channel, a light transmitting lens portion, and a hinge portion joining the body portion to the lens portion to form a unitary body. The hinge portion allows the lens portion to pivot relative to the body portion between an open position, where the channel is open, and a closed position, wherein the lens closes the open channel. The extruded housing is designed to form part of a light emitting diode light fixture, where the housing accepts a strip or plurality of LEDs within the channel for emission of light through the lens portion.

Abstract: There is described a food cooling appliance (1) having an outer casing (2) extending along a vertical reference axis (A); a food cooling chamber (3) housed inside the outer casing (2) and of a given length (L1) measured along the reference axis; at least one food-supporting shelf (5) positioned firmly, m but in easily removable manner, inside the cooling chamber; a primary inductor (8) extending in a direction parallel to the reference axis, and of a length (L2) substantially equal or less than the length of the cooling chamber; one or more light-emitting units (18) located along an outer peripheral edge of the shelf and coplanar with the shelf; and at least on secondary inductor (9) housed in the shelf to supply the light-emitting diodes (18) with electric current.

Abstract: A street lighting fixtures and more particularly to a street lighting fixture having an induction lamp having an improved form and structure regarding the currently existing fixtures wherein the street lighting fixture comprising: a housing having a first end, a second end and an inner surface divided in a light reflector retaining portion and a ballast retaining portion; a reflector, attached to the inner surface of the housing, said reflector having a light source; an insulating panel, dividing the inner surface of the housing in a light reflector retaining portion and a ballast retaining portion; and a transparent cover, covering at least a portion of the light reflector retaining portion and the ballast retaining portion.

Abstract: Disclosed is a printed circuit board, on which a holder for fixing a lamp is mounted, is disposed on an upper surface of a bottom cover, and an inverter supplying a driving voltage to the lamp is disposed on a lower surface of the bottom cover. The printed circuit board is electrically connected to the holder as a conductive pattern is embedded in the printed circuit board. The connector is directly mounted on the inverter, or it is connected to the inverter via a wire. In this case, the connector is also connected to the printed circuit board. Therefore, the connector of the inverter and the connector of the printed circuit board are electrically connected.

Abstract: An elongated LED lamp suitable for replacing a fluorescent lamp in a lamp fixture comprises a chassis having a first chassis end with two electrodes adapted to be respectively coupled to two electrodes in the lamp fixture supplying AC power, and a second chassis end. A light source depends from the chassis. A power regulating circuit is mounted to the chassis and is coupled to the two electrodes for providing DC power to the first light source. A first light collector conditions the light it collects light from the first light source for TIR propagation within a side-light distribution arrangement. An elongated side-light distribution portion depends from the chassis and receives light exiting the first light collector. Light-extraction structure extract light from the side of the first portion, along a length of the first portion, in a different direction from the direction of light received from the first light collector.

Abstract: The invention provides an elongated lighting fixture with multiple light emitting diodes (LEDs) arrayed in two groups that are angled to each other. The fixture includes an elongated housing having a pair of side walls with at least one fin to dissipate heat. Each side wall has a support member extending upward at angle from the side wall. A generally transparent cover is connected to the housing and extends between opposed ends of the housing. A first group of LEDs and a second group of LEDs are mounted to the first support member and the second support member, respectively. First and second interconnection board assemblies are affixed to respective support members beneath the group of LEDs. When the first and second interconnection board assemblies are energized by an internal power source, current travels from each interconnection assembly through fasteners to each group of LEDs for illumination.

Abstract: An extended length flexible LED light strip system for extending the length of a flexible LED light strip. The extended length flexible LED light strip system generally includes a protective covering having a passage, a light strip extending within the passage of the protective covering, a first power bus and a second power bus within the protective covering, and a plurality of connectors electrically connecting the light strip to the power buses at selected lengths. A power coupler is provided that includes a pair of prongs that extend into the protective covering and electrically contact the power buses to provide DC power to the power buses.

Abstract: A handrail assembly for lighting an adjacent area includes two stanchions for attachment to a surface, each stanchion including mounting structure; a bar for attachment to the stanchions, the bar having two ends and defining mounting structure at the ends; and a lighting element configured to be carried by the bar. The mounting structure of the stanchions and bars cooperate to provide two alternate mounting orientations of the bar within the stanchions. In a first of the orientations the lighting element is offset circumferentially in a first direction relative to a centerline of the stanchions lighting a first adjacent area on a first side of the stanchions. In a second of the orientations the lighting element is offset circumferentially in a second direction opposite the first direction relative to the centerline of the stanchions lighting a second adjacent area on a second side of the stanchions.

Abstract: According to one embodiment, a straight tube lamp includes a straight tube cover, at least a portion of which has light transmissivity, and a light-emitting unit including a light-emitting element. A first cap including a pair of terminals for power supply are provided at one end of the cover. A second cap including a pair of terminals for control signals are provided at the other end of the cover. A lighting circuit is arranged in the cover. The lighting circuit is connected to the pair of terminals for power supply, and lights and controls the light-emitting element according to a control signal supplied through the pair of terminals for control signals.

Abstract: A picture illuminating device for mounting on the wall above the picture, or on the back of the picture frame. The device utilizes a light emitting diode (LED) or array of LEDs or light tube with LEDs to produce uniform lighting and is powered by conventional or rechargeable batteries which eliminates the requirement of electrical outlets and the spectacle of exposed electrical cords extending down the wall. The device is composed of a stem and a shade. The shade houses the LED or array of LEDs or light tube with LEDs, batteries and the electronic circuit that converts the direct current from the batteries to the current required to power the LED or array of LEDs or light tube with LEDs. The shade may or may not include a reflector which is configured to mount the LED or array of LEDs or light tube with LEDs and batteries so that the shade covers the LED or array of LEDs or light tube with LEDs adequately to prevent any glare from the front while presenting the look of a conventional, corded picture lamp.

Abstract: A flexible, integrally formed single piece light emitting diode (LED) light wire that provides a smooth, uniform lighting effect from all directions of the LED light wire. The integrally formed single piece LED light wire contains a conductive base comprising first and second bus elements formed from a conductive material. The bus elements distribute power from a power source to LEDs that are mounted on the first and second bus elements so that it draws power from and adds mechanical stability to the first and second bus elements. The flexible, integrally formed single piece LED light wire is assembled so that the first and second bus elements are connected to each other prior to the LED being mounted and such integrally formed single piece LED light wire is formed without a substrate.

Abstract: An apparatus for interfacing a ballast to at least one light emitting diode (LED) includes a passive rectifier circuit and matching circuit coupled to an input port and/or an output port of the passive rectifier circuit and configured to at least partially match an impedance of the ballast.

Abstract: A lamp module includes an external elongated housing made of at least one of a transparent and a translucent material; a lamp terminal with lamp pins at each end of the elongated housing, at least one cold cathode fluorescent lamp (CCFL) disposed in the external elongated housing a reflective layer disposed in the external lamp elongated housing, and an electronic connector adapter having a plurality of contact pins at one end and a plurality of connecting jacks at an opposite end for receiving the lamp pins of one of the lamp terminals.

Abstract: A lighting fixture is provided that includes a flat elongated base having opposing longitudinal marginal slots and a pair of upright walls inboard of the longitudinal slots, and a pair of end caps engaging opposing ends of the elongated base. A gasket extends along a longitudinal surface of each of the upright walls. A lens extends between opposing end caps and conforms to the curved marginal edges of the end caps and edges and upright walls. The lens has two opposing longitudinal grooves that align with a pair of side rails extending between the end caps. Each side rail has a longitudinal cam projection extending into the associated lens groove. When the side rails are tightened against the lens, the cam projections tighten the lens into contact with the gasket to form a water tight seal between the lens and the base.

Abstract: A lamp comprises a LED lamp comprising a base. A plurality of LEDs are attached to a first side of the base. A lens covers the plurality of LEDs. A power supply provides power to the LEDs. A first electrical connector provides power to the power supply. A troffer housing comprises a wire way for receiving the power supply. A second electrical conductor is adapted to be connected to a source of power. The base is secured to the troffer housing where the power supply is located in the wire way and the first electrical conductor is connected to the second electrical conductor.

Abstract: A lighting device has a base body of translucent material, in which several light-emitting diodes, which are applied to a flexible adhesive strip having integrated conductors, are arranged at intervals. A cavity is milled into the rear of the base body, the width and length of the cavity being slightly smaller than the width and length of the base body. A closed edge web is created along the periphery of the base body. An adhesive strip having light-emitting diodes is applied to the interior side of the edge web over the entire length in such a way that light-emitting diodes are arranged on the interior sides of opposing edge web sections. The light-emitting diodes illuminate a solid section of the base body in front of the cavity and produce a high luminous density on the front side. The rear side of the cavity is closed by a cover.

Abstract: A light-emitting diode tube, comprising a base, a fixing cover, an LED, a lampshade, a driver and a sliding cover is provided. The base has a first carrying surface and a second carrying surface, and a pair of first guiding rail and second guiding rail parallel to each other. The second carrying surface comprises a first area and a second area. The fixing cover is fixedly disposed on the guiding rail located in the first area of the second carrying surface, and covers the first area of the second carrying surface. The LED is disposed on the first carrying surface. The lampshade is located over the first carrying surface and fixed to the base and covers the LED. The driver is disposed in the second area of the second carrying surface. The sliding cover movably covers the second area of the second carrying surface or the fixing cover.

Abstract: An LED light fixture comprising a contoured light transmissive lens cover pivotally mounted between upper and lower end brackets so as to be movable between an open position and a closed position wherein in the closed position the upper and lower contoured edges of the lens cover mate flushly with the contoured surface of respective upper and lower end caps. A bank of LED carrying housing components are attached between the upper and lower mounting brackets so as to direct illumination toward the lens cover. Expansion brackets may be employed to facilitate addition of one or more additional banks of LED carrying housing components behind a lens cover of longer length to thereby created a sconce fixture of extended length.

Abstract: A lighting apparatus and method for making the same are presented. In some aspects the apparatus includes a plurality of LED light sources mounted to a metal circuit board in a housing of the apparatus. In other aspects a light-permissive potting compound is disposed in the space between the LEDs and circuit board and the housing of said apparatus so as to permit exit of light from said LEDs while providing mechanical protection for the circuit board and LEDs and removing heat generated from said LEDs.

Abstract: An LED-based light for replacing a fluorescent light in a light fixture comprises: an elongate housing, the housing having a first longitudinal portion with a first cross section and a second longitudinal portion adjoining the first longitudinal portion with a second cross section, wherein a shape of the first cross section is different from a shape of the second cross section, such that the housing includes at least one geometric asymmetry; at least one LED arranged in the housing; and a connector at and end of the housing configured for connection to a light fixture.

Abstract: An illumination arrangement comprising a plurality of light-emitting semiconductor components (1), arranged in a row, a diffuser (2), which is illuminated by the light-emitting semiconductor components during operation of the illumination arrangement, intermixes light emitted by the semiconductor components during operation and has a light coupling-out area (200) remote from the semiconductor components, and two mutually opposite, reflective longitudinal side faces (3), between which the row of light-emitting semiconductor components is arranged, which run perpendicular or obliquely with respect to the light coupling-out area, and which reflect at least part of the light emitted by the light-emitting semiconductor components during operation in the direction toward the light coupling-out area.

Abstract: In one embodiment, a solid-state luminaire has a strip of high power LEDs, where each LED emits light into an optical coupler. Light from the optical coupler is then coupled into a light guide. Light coupled into the light guide is mixed and guided to an exit aperture of the light guide. An optical extractor proximate the exit aperture of the light guide redirects light outward, which is optionally redirected generally downward by a secondary reflector that extends outwardly along the length of the light guide. The secondary reflector may be configured to create a variety of light-emission patterns. The luminaire may be hung from a ceiling, in track lighting, used as a pendant or pedestal fixture, or in other applications.

Abstract: A wand for visual communication comprising an elongated handle having an interior region, an elongated optical element having an interior region composed of light transparent material configured for joinder to the handle, and lighting disposed in the interior region and in communication with a control circuit. The control circuit comprises a controller configured to energize said lighting in response to user input and sensor input.