A luminous panel includes a light-emitting board having a light-emitting face to form a surface of a wall device, and a receiving part to be fastened to a framing of the wall device. The light-emitting board is removably attachable to the receiving part. In the installed configuration, the emitting face forms a part of the surface of the wall device and the receiving part is at the rear of the surface of the wall device. The light-emitting board and the receiving part include complementary rotational members located near first ends of the light-emitting board and the receiving part, and complementary snap-fastening members located near second ends of the light-emitting board and the receiving part. In the assembled state, the receiving part is completely covered by the light-emitting board and the rotational members are housed in the volume between the light-emitting board and the receiving part.

A fixture for a lamp and to a lighting element are provided that is usable as a reading light, for example in a vehicle or aircraft. The fixture is adapted to be releasably installed in an opening of an accommodating element and includes a cylindrical mounting element having a lateral wall, a front side, and an opposite rear side. The front side has an opening for receiving the lamp. The lateral wall has a radially outwardly projecting rib and a radially outwardly projecting latching element.

Disclosed is a light fixture configured to be mounted on a drop ceiling. The light fixture includes a luminaire. The luminaire includes a body comprising a cavity configured to house one or more light sources. Further, the luminaire includes a bezel circumferentially disposed around an opening of the cavity. Yet further, the luminaire includes an electrical connector configured to interface with a power cable. Moreover, the luminaire includes multiple fastening members configured to fasten the bezel to a drop-ceiling tile.

A luminaire comprising a housing formed of thermally conductive polymer with an optic carried thereby, a trim carried by the optic, and a light source. The light source may comprise an LED board comprising a copper layer and a plurality of light emitting diodes (LEDs) disposed on the LED board. The luminaire may also comprise control circuitry operably coupled to the plurality of LEDs, wherein the LED board is positioned in thermal communication with the housing. The luminaire may further comprise a mounting member configured to be attached to each of the housing and an external structure. The control circuitry may be configured to operate the plurality of LEDs such that heat generated by the plurality of LEDs is dissipated by the copper layer of the LED board.

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.

A ceiling element including a base adapted to be mounted in a ceiling of a room, thereby defining a room space under the base and a ceiling space above the base, is provided. The ceiling element includes a battery container adapted to receive a battery and arranged at the base such that it is located in the ceiling space when the ceiling element is mounted in the ceiling. The ceiling element further includes a conduit arranged to convey air between the room space and the ceiling space and/or the battery space when a temperature of the room space is different from a temperature of the ceiling space and/or a temperature of the battery container. A method of thermal management of a battery received in a battery container located in a ceiling space is also provided.

The present disclosures provides a collar for positioning at least partially around a recessed light fitting and between the recessed light fitting and a structural body. The collar comprises a plurality of collar portions each of which are configured to surround a portion of the recessed light fitting.

A method of installing a large lightweight lighting fixture includes: providing connector-terminated wiring in a space above a ceiling, the connector-terminated wiring being electrically connecting to the large lightweight lighting fixture, the ceiling comprising a ceiling material, the lighting fixture mounted to the ceiling without being fixed by a suspension member; connecting the connector-terminated wiring and a power supply adapter by using a connector of the connector-terminated wiring via an opening provided in the ceiling material; electrically connecting the lighting fixture and the power supply adapter while the lighting fixture is located in a room space below the formed ceiling; and mounting the lighting fixture to the ceiling material by passing a fastener through the opening of the ceiling material, wherein the fastener is included in (i) the lighting fixture, or (ii) the power supply adapter.

A baffle component for a luminaire includes a portion of opaque material that forms a front surface and a back surface as major surfaces. The front surface includes multiple ridges. The material also includes a top surface and a bottom surface, and a first end surface and a second end surface. The first end surface includes a first coupling feature, and the second end surface includes a second coupling feature that is configured to engage the first coupling feature of a second baffle component that is substantially identical to the baffle component. A baffle for a luminaire includes a plurality of such components. The baffle components engage with one another, with the first coupling feature of each of the baffle components engaging with the second coupling feature of another of the baffle components, to form a shape that surrounds a central opening of the luminaire.

A surface mount installation that includes a mounting body having an upper surface separated from a lower surface. The mounting body has an inner opening formed therein receiving an electronic device. The mounting body has brackets attached on the upper surface. Mounting straps are disposed in the brackets. The mounting body is movable along the straps. The straps include a plurality of holes formed therein. The holes receive fasteners therein attaching the straps to studs or joists of a building. At least one wire clip is attached to the mounting body. The at least one wire clip receiving and positioning a wire that is attached to the electronic device.