A luminaire featuring a light diffusing housing assembly with a batwing style catadioptric lens element with properties capable of producing a more uniform field of illumination in concert with a secondary diffusing lens element and optional internal light reflecting elements to maximize light output from a point light source including an LED, or a plurality of individual point light sources including an LED strip or LED array and other source of linear chromatic light or linear illumination sources including a light bar, fluorescent lamp, compressed-gas discharge tube and the like.

Provided is a support system for replacing a linear fluorescent lamp with a light emitting diode (LED) module. The support system includes an elongated support member having one or more channel structures extending along substantially an entire length of the elongated support member. One or more ends of the elongated support member are configured for engagement with a socket. The support system includes at least one LED module mounted in mechanical engagement with the one or more channel structures by a fastening mechanism. The at least one LED module is positionable along a portion of the length of the channel structure.

Provided is a support system for replacing a linear fluorescent lamp with a light emitting diode (LED) module. The support system includes an elongated support member having one or more channel structures extending along substantially an entire length of the elongated support member. One or more ends of the elongated support member are configured for engagement with a socket. The support system includes at least one LED module mounted in mechanical engagement with the one or more channel structures by a fastening mechanism. The at least one LED module is positionable along a portion of the length of the channel structure.

A recessed light fixture has an enclosure with an aperture, a light source operable to emit light through the aperture, and a glass element operable to transmit light emitted from the light source into the room. The glass element is disposed substantially planar with a bottom surface of the ceiling and has a beveled outer edge having an opaque coating operable to substantially prevent light from exiting through the bevel. A cover assembly is adapted to close an opening of a plaster frame, and has a cover plate and an elastomeric seal which forms a contiguous seal against a bottom of an interior of a liner of the plaster frame. A position of the light engine being adjustable relative to an aperture into a downlight position, wall wash position and service position.

A recessed light fixture has an enclosure with an aperture, a light source operable to emit light through the aperture, and a glass element operable to transmit light emitted from the light source into the room. The glass element is disposed substantially planar with a bottom surface of the ceiling and has a beveled outer edge having an opaque coating operable to substantially prevent light from exiting through the bevel. A cover assembly is adapted to close an opening of a plaster frame, and has a cover plate and an elastomeric seal which forms a contiguous seal against a bottom of an interior of a liner of the plaster frame. A position of the light engine being adjustable relative to an aperture into a downlight position, wall wash position and service position.

A rail lighting arrangement includes a rail, an additional component such as, for instance, a lighting module and a coupling unit. The rail has an inner region and a web that is provided with an opening. A conductor device is provided. The coupling unit is configured to be received by the rail and electrically connect to the conductor device. The coupling unit has a contacting section that is configured to be received in or pass through the opening in the web.

A rail lighting arrangement includes a rail, an additional component such as, for instance, a lighting module and a coupling unit. The rail has an inner region and a web that is provided with an opening. A conductor device is provided. The coupling unit is configured to be received by the rail and electrically connect to the conductor device. The coupling unit has a contacting section that is configured to be received in or pass through the opening in the web.

A fastening device fastens a lighting assembly in an elongate rail profile open on one longitudinal side. The fastening device is set up to be mechanically coupled to the lighting assembly and has a body through which the lighting assembly can be overlapped in sections from a rear side area of the same, which is facing away from a light output side of the lighting assembly. The fastening device has latching elements which are formed to engage behind an edge or undercut running along the rail profile in a latching manner. The fastening device has an actuating element that, when the fastening device is holding the lighting assembly inserted into the rail profile in this position, can be actuated by an operator from the open longitudinal side in order to move each of the latching elements into a release position.

A fastening device fastens a lighting assembly in an elongate rail profile open on one longitudinal side. The fastening device is set up to be mechanically coupled to the lighting assembly and has a body through which the lighting assembly can be overlapped in sections from a rear side area of the same, which is facing away from a light output side of the lighting assembly. The fastening device has latching elements which are formed to engage behind an edge or undercut running along the rail profile in a latching manner. The fastening device has an actuating element that, when the fastening device is holding the lighting assembly inserted into the rail profile in this position, can be actuated by an operator from the open longitudinal side in order to move each of the latching elements into a release position.

Light fixture installation adapters and methods thereof are disclosed. According to an aspect, a light fixture installation adapter includes a first bracket configured to be attached to a light fixture. The adapter also includes a second bracket configured to be attached to an electrical junction box. Further, the adapter includes a mounting assembly that has a first component and a second component attached to the first bracket and the second bracket, respectively. The first component is configured to engage with and to attach to the second component when the first component is oriented in a predetermined position with respect to the second component and when the first component is moved in one or more predetermined directions with respect to the second component for attaching the first bracket to the second bracket via the mounting assembly.