A device for retrofitting an existing trimmed recessed lighting fixture for installation of a trimless recessed light fixture may include a collar section configured to be received within an opening of a housing of the existing trimmed recessed lighting fixture installed above a ceiling surface, the collar section including a proximal section configured to be fitted within the opening of the housing; a surface being secured the collar section, the surface being configured to lie flush against the ceiling and to be joined integrally to the ceiling; and a baffle being releasably lockable to the collar section. A kit including the device and a method of retrofitting an existing trimmed recessed lighting fixture are also disclosed.

A bracket for a luminaire is described. The bracket can include a first portion having at least one first lamp socket connection system coupling feature disposed within a first body of the first portion, where the at least one first lamp socket connection system coupling feature is non-planar with the first body. The bracket can also include a second portion coupled to a proximal end of the body of the first portion, where the second portion includes at least one first housing coupling feature disposed within a second body of the second portion. The at least one first lamp socket connection system coupling feature can be configured to couple to at least one first bracket coupling feature of a socket of the luminaire. The at least one first housing coupling feature can be configured to couple to at least one second bracket coupling feature of a housing of the luminaire.

In one embodiment, a design system based on luminaires having multiple illumination panels includes first and second luminaires. Each of the first luminaires includes three illumination panels arranged in a row. Each of the second luminaires includes five illumination panels of the same size and shape, arranged in an L-shape, with a first, a second and a third panel arranged in a first row, and the third, a fourth and a fifth panel arranged in a second row at a ninety degree angle to the first row. In another embodiment, a design system based on luminaires having multiple illumination panels includes first and second luminaires. Each of the first luminaires includes three illumination panels arranged in a row. Each of the second luminaires includes nine illumination panels of the same size and shape, arranged in a grid of three rows and three columns.

A lighting fixture having an adjustable collar for accommodating different ceiling thicknesses is provided. The lighting fixture preferably includes a light module, a plaster frame, first and second support arms extending from the plaster frame, a U-shaped support assembly, an adjustment assembly for coupling the support assembly to the first and second support arms, and the collar. The adjustment assembly enabling the support assembly and the adjustable collar to be selectively movable along an axis perpendicular to the plaster frame. The adjustment assembly being configured so that, in a first configuration, the support assembly along with the light module and the collar are movable along the axis, and in a second configuration, the support assembly along with the light module and the collar are fixed to the first and second support arms so that a bottom end of the collar extends beyond a bottom surface of the plaster frame.

A bar hanger member is provided. The bar hanger member is for assembling with another like-member by superposition thereon to form a bar hanger for supporting recessed luminaires. The bar hanger member includes: an elongated body having a front face and a rear face; a channel extending through the body along the lengthwise axis; and first and second protrusions extending from the body aligned with the channel. The first and second protrusions are sized and shaped for slidable engagement with the channel of the like-member. When the bar hanger is assembled with the like-member, the second protrusion of the bar hanger engages in the channel of the like-member and the first protrusion of the like-member engages in the channel of the bar hanger member.

A hub for lighting at a grid intersection. The hub includes a light enclosure, light fixture, yoke, clip adapter, and beams. The enclosure includes connected walls each having a central offset portion with a connecting slot and multiple fixture slots. The yoke includes a middle section, two side sections, and two connector sections having protrusions. The yoke is attached to the enclosure by passing the connector sections through the connecting slots in opposite walls of the enclosure. Clips are inserted into the connecting slots that do not contain the yoke. The clips include arms extended therefrom and have protrusions. Beams with end adapters having holes are then connected to the enclosure by engaging the protrusions on the yoke and clips with the holes on the clip adapters. A light fixture can then be attached with fasteners passing through the fixture and slots in the fixture. Optionally a driver can be attached to the fixture.

A lighting fixture for a suspended ceiling including a grid of rails and hub forming an opening in the suspended ceiling has a housing with a mounting clip operable to toollessly mount to a vertical portion of a rail from above with a cam to resiliently expand the mounting clip laterally during mounting of the housing onto the rail, a light unit support connected to the housing and operable to toollessly mount to the hub, from above, and a light unit operable to toollessly mount to the light unit support, through the hub, from below the suspended ceiling.

A junction box having a cavity to contain electrical wires that provide a connection to a building mains voltage from an electrical system of a building is coupled to a plurality of telescoping hanger bars to hold the junction box in a wall or ceiling in the building. Each telescoping hanger bar is extendible and/or retractable to vary a length of the hanger bar. A position of the junction box is adjustable along the length of each telescoping hanger bar. In one example, the apparatus does not include a can, separate from the junction box, to contain a lighting device of a recessed lighting assembly.

A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member from which fins extend. Each fin can include one or more straight and/or curved portions. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.

Embodiments herein are directed to a lighting fixture for insertion into a strut channel member. In an installed position, a light source supported by the housing of the lighting fixture is disposed at least partially within an interior volume of the strut channel member. The lighting fixture can be attached to the strut channel member by the lips of the strut channel member. When the lighting fixture is installed in the channel member, light from the light source emanates in a direction out of the channel member through the slot in the channel member. The lighting fixture may be snapped or slid into or out of place in the channel member.