An integrated ceiling device (80, 120) includes an electronics assembly (56) and a mechanical arrangement (20). The mechanical arrangement includes a housing (22), a heat dissipating structure (24), and support arms (26). The housing is configured to retain the electronics assembly. The heat dissipating structure includes a lamp seat (50) for receiving a light source (54), and a central opening (34) surrounded by fins (36). The support arms extend between and interconnect the housing with the heat dissipating structure. The housing is positioned within the central opening and is spaced apart from the fins of the heat dissipating structure to enable a free flow of air in an air gap (42) between the housing (22) and the structure (24). The electronics assembly may include a plurality of elements (160, 162, 164, 166) retained in the housing which are spaced apart from the heat dissipating structure.

A lighting-up device includes: a power supply circuit which supplies power to a light source; a wireless communication circuit including an antenna; and a metallic casing which includes metal, and houses the power supply circuit and the wireless communication circuit. The metallic casing has a first side face and a second side face which share a side, the first side face is provided with a first slit which extends in a first direction intersecting with the side, from a first portion of the side other than both ends of the side, the second side face is provided with a second slit which extends in a second direction intersecting with the side, from a second portion of the side other than the both ends of the side, and each of the first slit and the second slit is electromagnetically coupled to the antenna and functions as a slot antenna.

A thin profile surface mount LED lighting apparatus includes a housing, an LED board including multiple LEDs, and a lens. The lens has a back side facing the LED board and a front side that provides a downward facing surface when the LED lighting apparatus is installed in an opening of a ceiling. The lens is disposed with respect to the LED board such that the LEDs illuminate the back side of the lens. A first spacing of the LEDs causes resulting light from the downward facing surface of the lens to be substantially uniform during operation of the apparatus. In one example, a thin front edge of a sidewall of the housing, forming a perimeter around the lens, is flush with the lens and is appreciably thin (e.g., a thickness of less than three millimeters), and a depth of the sidewall housing is less than one inch.

A friction clip includes a coupling portion having a coupling element, a middle portion adjacent the coupling portion, and an end portion adjacent the middle portion and opposite the coupling portion. The middle portion includes a bent out tab having a first interference edge configured to engage an internal wall of a first canister having a first diameter and the end portion includes a second interference edge configured to engage an internal wall of a second canister having a second diameter. Alternatively, a multi-part friction clip includes a first member that is couplable to a light module, and a second member that is removably couplable to the first member. The second member includes a coupling portion configured to removably engage with the first member, a middle portion having a bent out tab that includes a first interference edge, and an end portion that includes a second interference edge.

A modular recessed light system employs a frame which secures a mounting ring on one side of a ceiling opening and receives a ceiling collar with a circumferential flange on the other side of the ceiling opening. The mounting ring and the ceiling collar are clamped to opposing sides surrounding the ceiling opening. The collar mounts a pair of clamp members which engage slots of a light module which is insertable into the ceiling opening and retained in recessed relationship with the ceiling. The light module may be a down light module or an angularly adjustable light module. In addition, a trim assembly, which may have a square trim with a down light lens, a square trim with an angled lens, a circular trim with a down light lens or a circular flange with an angled lens are also each releasably retained to the housing by magnetic bonding. A mud or plaster ring may also be optionally mounted over the circumferential flange of the ceiling collar and secured to the mounting ring.

A luminaire that includes a heat spreader, a heat sink diametrically outboard of the heat spreader, an optic retained by the heat spreader, a light source disposed on the front side of the heat spreader, and a power conditioner disposed on the heat spreader. The power conditioner is disposed on the same side of the heat spreader as the light source. The heat sink includes fins that alternate with adjacently disposed and radially oriented recesses.

A system for mounting pendant lighting fixtures includes an interface component adapted to be at least partially retained in an opening defined by a ceiling. The interface component defines at least one aperture to accommodate a hanging support extending through the opening and configured to support a pendant lighting fixture. The system includes a cover plate defining at least one aperture to accommodate the hanging support. The system also includes at least one magnetic element operable to exert a magnetic bias on the cover plate to secure the cover plate against the interface component and at least partially cover the opening.

A ceiling light fixture includes an embedded box, a mounting board, a ceiling light assembly, and a locking member. The embedded box is inserted into a ceiling. The mounting board is mounted in the embedded box and is provided with two locking slots each including an introducing portion, and a retaining section. The locking member is mounted on the ceiling light assembly and includes two locking portions and a linking portion. Each of the locking portions is introduced into the introducing portion of one of the locking slots. When the locking member is rotated relative to the mounting board, each of the locking portions is moved in the one of the locking slots, and is locked in the retaining section of the one of the locking slots, such that the locking portions are locked by the mounting board.

The present disclosure provides wall pack light fixtures having a hinge, the hinge having a first portion and a second portion rotatably coupled to the first portion, a front cover, the front cover connected to the first portion of the hinge, the front cover including a light engine, and a rear enclosure, the rear enclosure connected to the second portion of the hinge.

A plaster frame assembly includes a base plate that has a base wall and a plurality of side walls that extend substantially perpendicular to the base wall from a perimeter of the base wall. The base wall includes at least one regressed pad that has a plurality of perforations. The plurality of perforations receive one or more securing fasteners therethrough to secure or fasten the base plate to the ceiling. Furthermore, the base wall includes one or more sealing features that provide an air-tight sealing for a recessed housing can received through and retained in a can receiving opening formed in the base wall. The one or more sealing features include multiple collar sections that define a groove for receiving a sealing member, and one or more sealing tabs disposed between the multiple collar sections and configured to seal one or more adjustment apertures of the recessed housing can.