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: A rail track assembly comprises a rail defining a longitudinal channel configured to slidably receive at least a portion of a monitoring drone. An end cap is configured to be coupled to a first longitudinal end of the rail. A charge cap is configured to be coupled to second longitudinal end of the rail opposite the first longitudinal end, the charge cap configured to house a power module for charging the monitoring drone when the monitoring drone is located at the second longitudinal end.

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: Lighting strip system (1) which extends along a longitudinal axis direction (L) and has the following: an elongated carrier profile (2) with two elongated side walls (21, 22) that face each other and an elongated base wall (20) connecting the side walls (21, 22), which together delimit a receiving space (A), a first and a second mechanical coupling region (3, 4), wherein the first coupling region (3) is provided between the base wall (20) and the second coupling region (4) as viewed in the longitudinal axis direction (L), an elongated power supply unit (5) which extends in the longitudinal axis direction (L) in the receiving space (A), a lighting strip lamp (6) which extends in the longitudinal axis direction (L), is electrically contacted with the power supply unit (5) and is releasably mechanically coupled to the second coupling region (4), and an electrical or electronic unit (7) with a functional region (73) and an operating region (74), wherein the functional region (73) is arranged adjacent to the light

Abstract: Tenon-mounted lighting fixtures with high structural integrity are provided. In one embodiment, the lighting fixture has a housing that has an integrally formed tenon cradle, which is configured to receive a tenon of a light pole. A light source is also mounted on a bottom side of the housing. The tenon cradle is between a first bolt boss and a second bolt boss, and is in communication with a rear opening of the housing. The first and second bolt bosses may be integrally formed in the housing. The tenon cradle includes multiple ribs. An arcuate cross rib resides in a first plane in which a first bolt shaft of the first bolt boss and a second bolt shaft of the second bolt shaft reside. An axial rib intersects the arcuate cross rib and runs perpendicular to the first plane.

Abstract: Disclosed is an outdoor light assembly to be disposed in a pathway or other hardscape area. The light assembly having a sleeve forming a receptacle having one or more coupling structures disposed in the receptacle and a user replaceable light fixture assembly being sized and shaped to transition between a secured position and an unsecured position relative to the receptacle. The light fixture assembly having one or more engagement structures that are complementary to the one or more coupling structures so as to inhibit, but not prevent, removal of the light fixture assembly from the sleeve when the light fixture assembly is in the secured position.

Abstract: The lighting apparatus (10) comprises a connection body (11), and a lighting body (12) with at least one light source (13); the lighting body (12) is mechanically and electrically connected to the connection body (11), the connection body (11) is adapted to be mechanically and electrically connected to a supporting and power-supply guide (20) which extends in a longitudinal direction (L); the connection body (11) is shaped like an elongated box and is adapted to be inserted into and extracted from the guide (20) at least in a direction (P) perpendicular to the length thereof and to the longitudinal direction (L); the connection body (11) comprises at least two mechanical contacts (16A, 16B) and at least two electrical contacts (15A, 15B), as well as at least two elastic means which act on the mechanical contacts (16A, 16B) or on the electrical contacts (15A, 15B) so as to allow them to be moved back-and-forth during the inserting and extracting step into/from said guide (20).

Abstract: An electric light has a light bulb within a housing. The housing has generally horizontal exterior and interior surfaces and a periphery. The exterior surface has a translucent plate. A gripper, constructed of a pair of similarly configured arms, supports the housing. Each arm has a downwardly extending finger and an upwardly extending handle. Each arm has a laterally extending projection with a pivot pin pivotably coupling arms. A spring encompasses the pivot pin and contacts the handles. A coupling assembly couples the housing to the gripper which is removably supported on a recipient surface of a trailing vehicle. The electric light is adjustably positioned with respect to the recipient surface of the trailing vehicle.

Abstract: The invention discloses an LED fluorescent lamp, comprising a base plate, an end cap, an aluminum profile, a light diffusing plate, a light guide plate component, a lamp shade, a power unit and a lamp panel component as well as an LED lamp bead on the lamp panel component; first slots are arranged on two left side walls of the aluminum profile; the light guide plate can rotationally sleeved in the first slots; the top of the lamp shade is provided with a holding groove, at the bottom of which a hollowed-out part is hollowed out; the light diffusing plate is fixed in the holding groove and provided with many stripes on the surface; the stripes are crossed to form diamond-shaped stripes; and two sides of the lamp shade are arcs. The invention has the advantages of high thermal radiation effect, soft light and better light-emitting angle.

Abstract: An LED light fixture a housing, a heat sink secured with respect to the housing, the heat sink has a base with front and back surfaces, and an LED arrangement mounted at the front surface of the heat sink. The back surface of the heat sink is open to water/air flow thereover. The LED light fixture also includes at least one closed channel extending along the base and spaced therefrom for receiving wire connections for the LED arrangement. The at least one closed channel receives wiring extending to/from the second LED module. The LED arrangement may include at least first and second LED modules, the first LED module being proximal to the housing with the at least one closed channel receiving wiring extending to/from the second LED module. The first and second LED modules may be in end-to-end relationship to one another such that the second LED module is distal from the housing.

Abstract: An LED lighting fixture comprising a housing portion and a light-emitting portion supporting at least one illuminator, the housing portion and the light-emitting portion defining an open space therebetween permitting air/water-flow therethrough. In some embodiments, at least one wall extends within the open space and open for air/water-flow along at least two sides thereof.

Abstract: A holder is disclosed that is configured to secure an LED array in position. An LED module is disclosed that includes an LED array that can be mounted to a suitable substrate and includes the holder the retain the LED array. The holder includes a housing that supports terminals that provide an electrical path to the LED array from an electrical power source. The housing and terminal provide a wire trap so that a conductor can be electrically connected to the LED array without the need for solder attach. The holder can be a one-piece or two-piece design.

Abstract: A kit for mounting one or more appliances on a pole, the kit comprising a central ring for being mounted around a pole and having a through-hole, a fitting surface and a support surface, and a carrier having a base part and at least one support arm extending from said base part for supporting one or more appliances, wherein said base part is adapted to be fitted on said support surface and has a through-hole adapted for being fitted around said fitting surface.

Abstract: A luminaire having a housing with a column extending therefrom and a bracket secured to the column, the bracket having a body and two wings extending from opposing sides of the body, at least a portion of each wing extending in a direction at least partially away from the column. The mounting bracket allows installation of the luminaire to a structure, such as a ceiling or canopy, by inserting the luminaire column and bracket into an aperture in the structure from the underside of the structure. The aperture edge forces the wings to flex inward as the column advances through the aperture until the wings pass the aperture edge and spring outward to hold the luminaire to the structure. The mounting bracket thus facilitates quick attachment of the luminaire to the structure and allows attachment of additional mounting hardware to further secure the luminaire to the structure.

Abstract: A rain gutter illumination system including an inverted U-shaped hanger, an illuminable surface attached to a stem of the hanger and including an aperture, an L-shaped base including a foot at one end, the end of the base opposite the foot being attached to the end of the illuminable surface opposite the hanger. A light source and one of various removable decorative inserts and optionally a diffusing panel are arranged so that the light source projects light through the aperture of the illuminable surface.

Abstract: A light fixture includes a housing having a hollow interior and an open end. A circuit board is mounted in the hollow interior of the housing. A source of illumination is mounted on the circuit board. A light transferable cover extends across a lower end of the housing. A bracket assembly mounted to the housing includes a housing bracket and a mounting bracket that is configured for mating and subsequent relative sliding motion to releasably lock the housing bracket to the mounting bracket.

Abstract: A luminaire includes a first body module, a light module, a second body module, a wire-receiving unit, and a wire. The light module is disposed on said first body module. The second body module is movable telescopically relative to the first body module. The wire has two ends respectively and electrically connected to the first and second body modules, and a portion that is received within the wire-receiving unit and that is movable at least partially into or out of the wire-receiving unit as a result of adjusting the length of the luminaire, thereby preventing entanglement of the wire.

Abstract: Adjustable light emitting diode lighting assembly, kit and system and method of assembling an adjustable light emitting diode lighting assembly. The adjustable light emitting diode lighting assembly comprises a mounting can adapted to be mounted in a housing and an upper locking ring adapted to be mounted to the mounting can. A lower base ring is spaced-apart from the upper locking ring. An adjustable collar coupled to the upper locking ring and the lower base ring and interposed therebetween is provided for adjustably supporting a light emitting diode module over a plurality of light distribution angles. Conductive, radiative and/or convective heat sinks are provided for removing heat produced by the light emitting diode module to maintain luminous efficiency and service life of the light emitting diode module.

Abstract: A lighting system including a track member and a lighting unit supported by the track member 14. The track member includes an elongate base for mounting the track member to a surface, such as a wall, frame, etc. A pair of arms 26 and 30 extend from the base 22 in a common direction and define therebetween a channel 34 for receiving the lighting unit 18. Rotationally interlocking members associated with each at least one of the track member and the lighting unit restrict rotation of the lighting unit relative to the track member when the arm is in a first position. Upon application of a threshold rotational force to the lighting unit, the at least one arm moves to a second position permitting angular adjustment of the lighting unit.

Abstract: A luminaire that has multiple removable handles thereon, and can operate in multiple different modes, including a mode where a manual follow spot can occur. To operate in the manual follow spot mode, the luminaire is placed into a free moving mode in which it can be moved, and then the luminaire is moved using the removable handles to manually place the luminaire in a desired location. Then, the luminaire is commanded to remain in that desired location by turning on breaks or the like. In the manual movement mode, movement of the luminaire is manually controlled and not remotely controlled and all of at least color, gobo, beam size and other parameters are remotely controlled.

Abstract: LED downlight and other point source luminaires contain one or more Application-Specific LED modules with integrated optical, mechanical, and heat dissipation systems; a fluted extruded metal housing acts as a heat sink as well as the luminaire housing containing the AS-LED module(s) or receiving a rotatable spherical housing that contains the AS-LED module, printed circuit board units, and wires; mounting brackets; and a remote LED driver. The extruded aluminum housing (and heat sink) may be comprised of a single cylinder or multiple concentric cylinders. The heat dissipation base of the AS-LED module can be any shape and size dependent on the type of LED luminaire the AS-LED module is designed for. The LED luminaires have a short thermal path, including just one electrical/thermal insulation layer between the LED chips and the housing, and one optical lens system between the LED chips and the surrounding ambient air.

Abstract: A lamp socket and cable bracket assembly includes a lamp socket holding a lamp bulb, electrical wires extended from the lamp socket for connection to power source, and a flat cable bracket configured to hold the electrical wires in a smoothly curved manner against stretching and to dissipate heat radiated by the lamp bulb, avoiding electrical wire damage.

Abstract: An architectural light fixture with a mounting includes a rigid yoke with opposed mounts aligned with external cavities located on a housing. The cavities have conical inner surfaces and bottoms with fastener engagements. Yoke pins include conical outer surfaces to operate as yoke locks. Fastener associated with the yoke pins engage to draw the yoke locks into interfering fit with the truncated conical inner surface of the mounting cavity. The light fixture housing has a port with a plug of porous water repellant material. A cover is employed to protect the plug. The light fixture housing also has a flat mounting surface with a wire access hole. The fixture includes a cover to enclose a photocell biased toward the mounting surface and retains an O-ring against the fixture housing.

Abstract: A hands-free multi-positional task light having an elongated light emitting portion utilizing one or more fluorescent tubes and/or light emitting diodes, a wide retractable and fully rotatable mounting hook, a free-standing base capable of maintaining stability when positioned on surfaces up to 20 degrees from horizontal, and a mounting clamp attached via a ball and socket joint serving as a mounting method, a means to attach alternate mounting devices such as magnets or additional hooks, a makeshift base, or a stabilizing weight while providing two degrees of movement and a clamp band providing a third degree of movement for nearly unlimited aiming for hands-free use.

Abstract: A retrofit kit for an existing light, that has a prewired assembly, including a housing having wiring to electrical mains, an LED light source, at least one control for said LED light source, both said LED light source and said control being wired to said wiring, and said housing having a at least one mounting device that fits on existing structure of the existing light. The mounting structure can include tabs, for example, that attach to hanging part of the light, or can include a part that attaches to the existing surfaces on the housing of the light that previously held the socket for the existing bulb.

Abstract: An electronic device may be provided with an electronic component such as a camera light source containing a light-emitting diode. During operation, the light-emitting diode may produce heat. Thermally conducting elastomeric structures may have features such as sidewalls that mate with external surface of the camera light source or other electronic component to dissipate heat from the electronic component. Metal structures such as a bracket may be used to press the elastomeric structures and the electronic component towards a wall of a housing for the electronic device. Support structures may be interposed between the wall of the housing and the elastomeric structures. The support structures may have an opening that is aligned with an opening in the housing wall. Insert structures may be received within the opening in the support structures. The electronic component may be aligned with the insert structures and the opening in the support structures.

Abstract: A lamp and a hardscape structure illuminated by the lamp are disclosed. The lamp is formed from a plate to which a light fixture is attached. The plate may have a flange, a decorative face plate and side panels attached to direct light from the fixture along the hardscape on which the lamp is mounted. Mounting is effected by positioning the plate between discrete hardscape elements that are stacked one atop another. A portion of the plate projects out from the structure allowing the fixture to cast light on the structure surface. A light transmitting cover is also provided.

Abstract: A lighting system includes a low-profile LED driver box with quick connect LED drivers that are accessible through service doors, panels or plates. The LED driver box attaches to a ceiling mount to support or suspend an LED light fixture. The LED light fixture is suspended from the LED driver box through a power-feed suspension mechanism that includes at least one direct current power conductor cable to power to the LED light fixture. The LED light fixture includes one or more linear arrays of LEDs. The system also includes a controller or dimming circuit for controlling light output and/or a backup battery for providing power to the LED light fixture in the event of a power failure.

Abstract: A retrofit canopy light system is provided that has a multi-output power supply assembly in electrical communication with a plurality of luminaire assemblies through a plurality of distribution wires. In one embodiment, each luminaire assembly may receive an electric current from a respective distribution wire extending from the power supply assembly. The power supply assembly may convert high-voltage AC to low-voltage, regulated DC. Each luminaire assembly may comprise a light source and a low profile, heat-dissipating frame in thermal and mechanical communication with the light source. The heat-dissipating frame may be constructed of a thermally conductive material, and may include a plurality of heat sink fins and bars. The heat-dissipating frame may present a substantially flat surface configured for flush mounting adjacent to an existing canopy fixture.

Abstract: A lighting device may be provided that includes a light emitter including a plurality of LEDs; a reflective plate disposed on the light emitter; a diffuser plate disposed in a direction in which light emitted from the LED is irradiated; a case including the light emitter disposed therein and including a bottom plate and a side wall extending from both side ends of the bottom plate; and a connecting member extending from the side wall of the case and including a bracket coupler on at least one side thereof. The light emitter is disposed between the bottom plate of the case and the diffuser plate.

Abstract: An exemplary lamp cover for covering a light source includes a connecting member, mounting members, first covering members, and a second covering member. The mounting members are integrally formed with the connecting member as a single piece. The first covering members are detachably mounted on the connecting member and alternated with the mounting members. The second covering member is capable of being mounted on the connecting member to replace one of the first covering members to change a shape of a light field of light emitted from the light source and through the lamp cover.

Abstract: A light casing has a semi-circular fixed case, a semi-circular movable case, and two lateral fastening members. Each of the lateral fastening members has a first surface, a second surface, and an orifice disposed near the center of the lateral fastening member. A semi-circular positioning slot is disposed on the periphery of the orifice on the second surface, and a nearly circular sliding slot is disposed on the periphery of the positioning slot on the second surface. The ends of the fixed case are disposed in the positioning slots, and at least one light is disposed on the fixed case. The ends of the movable case are disposed in the sliding slots. When the fixed case overlaps the movable case, the light is uncovered. When the fixed case and the movable case form a covered space, the light is covered.

Abstract: A light housing is provided. Housing comprises plate with light communication for LED luminaire attached to upper surface of plate, annular base having a rim, plurality of supports connecting plate to annular base, slots in each of plurality of supports; and retention clips engaged within slots. Housing includes j-box rotatably secured by support to plate with mounting brackets which include locking detents to maintain support in upper or lower positions. Also provided is fixture assembly comprising housing with LED light attached thereto. Further methods for installing assembly are provided and include positioning assembly through hole in ceiling substantially within above-ceiling space, locking retention clips against plurality of supports to maintain assembly in position relative to ceiling; and engaging upper rim of reflector with deflection clips attached to bottom surface of plate of assembly.

Abstract: A headlight of motorcycle includes a dashboard, a connection member, a headlight, a bracket, and front support racks. The dashboard is coupled to the headlight by the connection member in a modularized manner. The headlight forms coupling holes for mounting to the front support racks. The bracket carries signal lights thereon. By coupling the headlight and the dashboard together in a modularized manner and mounting the bracket that carries the signal lights to the opposite sides of the headlight, and further fixing the front support racks to the opposite sides of the headlight, a headlight module is formed. The headlight module can be easily attached between upper and lower beams of a steering handlebar by using the front support racks so as to simplify the assembling operation and to conceal the front support racks between the bracket and the steering handlebar for improving the outside appearance of the headlight.

Abstract: A step light fixture includes an enclosure for retaining one or more socket and lamp combinations, a light transmissive lens, a cover for sealing the enclosure, and a mounting plate for attaching the fixture on an underside of a stair tread overhang. In a first embodiment, the cover is attached to the enclosure by a removable hinge at a first end that permits the cover to pivot its second end outward away from the enclosure to provide access to the interior of the enclosure. The second end of the cover includes a latch that mates with a corresponding catch on the side of the enclosure to releasably close the enclosure.

Abstract: A lighting system for use with a watercraft comprising a light module wherein a light bulb is mounted on the front end with an on-off switch, with a handle which pivotably attaches to the light module, further comprises a rechargeable battery which is mounted to a cut-away opening in a cowling with a U-bracket.

Abstract: A lamp head assembly includes an outer head unit, an inner head unit, and an elastic pressing unit. The outer head unit includes at least two conductive pins. The inner head unit is disposed rotatably in the outer head unit. The elastic pressing unit is disposed movably in the outer head unit for selectively positioning the position of the inner head unit relative to the outer head unit or the position of the outer head unit relative to the inner head unit, wherein the elastic pressing unit includes a pressing element selectively exposed from the outer head unit.

Abstract: A luminaire mounting assembly comprises a mounting bracket having at least one keyed aperture, the mounting bracket having one of a slider assembly and at least one tab, a fixture housing having the other of a slider assembly and the at least one tab, the slider assembly movable between a first fixture position and a second fixture position, the slider assembly having a fixed element, a plunger movable relative to the fixed element, the plunger biased toward a first plunger position and engaging the at least one tab, the plunger movable to a second plunger position to pass the at least one tab.

Abstract: A bracket device for mounting a light fixture comprising a flat grooved element and a flat cover to conceal and protect the electrical conductors powering the light source inside the lighting fixture is disclosed. When configured to swivel, the bracket device allows for adjustment of the light fixture without introducing significant wear or strain to the electrical conductors passing through the interior portion of the device. This bracket device is thin, compact and of very neat and simple appearance. Because of its thinness and its compact shape this device conceals and its main element can be made to have the same thickness as a prior art mechanical bracket element, which would not normally carry electrical conductors.

Abstract: A recessed ceiling light fixture with spring biased retainer clips that retract flush or are biased away from the side of the can housing for installation is disclosed. The fixture includes a housing having a side wall, a top wall, and an open bottom. Two rigid retainer clips are mounted diametrically opposed on the housing. Each retainer clip has a mounting tab inside the housing extending into a leg that passes out of the housing, which leg is bent to form an elbow, which elbow extends to a strut passing back into the housing, wherein the mounting tab selectively engages the side wall to limit movement of the spring clip. A bolt and coiled spring create compliance and bias in the spring clip by passing loosely through a slotted opening in the top wall at one end and joining the mounting tab at the other end.

Abstract: The present invention involves a retrofit lighting assembly for use with conventional lighting assemblies. The retrofit lighting assembly includes a base configured to engage the conventional lighting assembly socket, and a bracket assembly coupled to the base. The bracket is expandable so that once the base is secured inside the lighting assembly housing it may expand for attachment to the housing.

Abstract: A modular display for housing both digital and static display is disclosed herein. The modular display includes a cabinet having an external frame and a display chassis. The display chassis is shaped and sized so that it can be selectively inserted into and selectively coupled to the external frame of the cabinet. Both a static display chassis and a digital display chassis serve as display chassis that can interchanged within the modular display. The static display chassis housing includes a static light source and a static display. The digital display chassis housing includes a digital display.

Abstract: An LED light module for attachment to the outer end of a support arm extending from a support pole is disclosed. The LED light module includes a case having a clamp assembly secured thereto which is adapted to be clamped onto the outer end of the support arm. A module consisting of an LED panel, heat sink and power supply is selectively removably secured to the case as a unit or module so that the unit or module may be inserted into the case as a single unit or removed from the case as a single unit. The heat sink of the invention is comprised of a pair of heat sink members secured together. The power supply is secured to the heat sink at one end thereof with the LED panel secured to the bottom of the heat sink.

Abstract: A self-leveling bracket assembly for suspending a lighting fixture from a ceiling of a structure. The light fixture comprising a frame having a first and second ends, the self-leveling bracket assembly having two brackets, each bracket comprising a connector member adapted to be attached to the ceiling and a hangar having one end pivotally attached to the connector member and another end adapted to receive the light fixture.

Abstract: A lamp holder comprising a lamp holder base, a lamp holder housing and a microswitch. In a preferred embodiment, the lamp holder base has a longitudinal axis and an actuator finger coupled to and shielded within the lamp holder base. The lamp holder housing is removably coupleable to the lamp holder base, and the microswitch is mounted within the lamp holder housing, wherein the microswitch is activated by the actuator finger when the lamp holder housing is inserted into and rotated with respect to the lamp holder base.

Abstract: Lighting fixtures (20) for attachment to architectural surface structures are adapted to hold light sources (100). The lighting fixtures (20) may include a base plate (32) and mounting brackets (34A, 34B). Clamps (80) are provided that may bias the light source (100) in either the forward or rearward direction. The clamps (80) may include spring arms (92) that center the light source (100) within the fixture (20) in addition to retaining the light source (100) in place. The fixtures (20) may further accommodate overlying structures, such as lenses (350). The lighting fixtures facilitate use with a variety of different architectural structures and formation in various shapes.

Abstract: A luminaire mounting assembly comprises a mounting bracket having at least one keyed aperture, the mounting bracket having one of a slider assembly and at least one tab, a fixture housing having the other of a slider assembly and the at least one tab, the slider assembly movable between a first fixture position and a second fixture position, the slider assembly having a fixed element, a plunger movable relative to the fixed element, the plunger biased toward a first plunger position and engaging the at least one tab, the plunger movable to a second plunger position to pass the at least one tab.

Abstract: A light fixture has a bracket adapted to be fixed to a wall or ceiling surface and having a leg formed with a leg hole, and a bolt fixed in the fixture housing and projecting therefrom along an axis through the leg hole. A ring engageable over an outer profiled end of the bolt can fit complementarily therewith. An annular disk fits over the ring, has a back face turned toward and engageable around the ring with the leg, and is formed with a radially extending threaded bore holding a radial screw engageable radially inward with the ring to rotationally lock the disk on the ring. The disk and leg fit are locked together so they cannot relatively rotate. An axial screw engaged through the disk and ring with the bolt engages axially inward with the disk to press the disk against the leg and the leg against the housing.

Abstract: An LED lighting element having an H-shaped housing. The housing, which may be an extruded housing, has a first section and a second section which is separated from the first section by a cross bar. A back plate is positioned opposite of the crossbar and is removably secured to the first section. A heat sink is located within the housing while a microcontroller and LED drive/control technology and integrated power supply contacts the heat sink and is attached to the back plate. An LED PC board that is electrically connected to the microcontroller and LED drive/control technology and integrated power supply is positioned in the second section and is attached to the housing. An end cap for the housing along with a method for constructing the lighting element are also disclosed.

Abstract: A lighting system including a track member and a lighting unit supported by the track member 14. The track member includes an elongate base for mounting the track member to a surface, such as a wall, frame, etc. A pair of arms 26 and 30 extend from the base 22 in a common direction and define therebetween a channel 34 for receiving the lighting unit 18. Rotationally interlocking members associated with each at least one of the track member and the lighting unit restrict rotation of the lighting unit relative to the track member when the arm is in a first position. Upon application of a threshold rotational force to the lighting unit, the at least one arm moves to a second position permitting angular adjustment of the lighting unit.