Abstract: An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.

Abstract: A lighting assembly includes a heat-sinking housing, a lens, a light source module including at least one LED, and an AC to DC converter to receive an AC voltage and supply regulated electrical energy to power the light source module. The housing includes a closed rear wall and a sidewall that defines a housing cavity containing the at least one LED. The closed rear wall and the sidewall are formed of a heat conductive material to conduct heat generated by the light source module. The assembly has a front end face, and at least one exterior width dimension of less than 3½ inches. In one example, a circular recess defined along an inner edge of the front end face contains the lens in the assembly. In another example, the front face includes a tool-less mating mechanism, for example a twist-and-lock mechanism comprising multiple flanges and/or slots.

Abstract: 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.

Abstract: The recessed lighting fixture includes a light source module and a driver housed within a unified casting, and within a shared outer casing. The outer casing may be coupled to a hangar holder that is movably coupled to a corresponding hangar bar. The outer casing, including the light source module and driver installed therein, may move both 1) in the length direction of the hangar bar and 2) perpendicular to the length direction of the hangar bar. The recessed lighting fixture may have less bulk and size than traditional recessed lighting fixtures. Other embodiments are also described and claimed.

Abstract: A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity. A driver enclosure is disposed in the first cavity to electrically insulate a driver from the heat sink. The driver enclosure substantially fills and covers the first cavity. A light source that emits light is disposed in the second cavity together with an optical element that redirects the light. A retaining ring/optic cover covers and encloses the second cavity. The lighting module is shaped and/or dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and/or a volume as small as 18 cubic inches. The heat sink may also include a receptacle to couple a trim to thermally and electrically couple the trim to the heat sink to dissipate heat and to ground the trim.

Abstract: A recessed lighting system includes multiple components formed from a polymer to reduce the number of components in the system, lower the cost of manufacture, and simplify the installation of the recessed lighting system. In one example, a recessed lighting system includes a housing formed from a polymer, a hanger bar assembly, a light module, and a trim. A yoke may be installed into the housing to provide greater accessibility to mount the light module and/or trim to the housing. A partition plate may be installed to push back wires/cables disposed in the housing such that the cavity of the housing is divided into a wiring compartment containing the wires/cables and a lighting compartment containing the light module and the trim. A hanger bar assembly may also be coupled to the housing to couple the recessed lighting system to a building structure (e.g., a T-bar, a joist, a stud).

Abstract: A lighting assembly includes a light source module including at least one LED, an AC to DC converter to receive an AC voltage and supply regulated electrical energy to power the light source module, a lens, and a heat-sinking unified casting. The casting includes a closed rear wall and a sidewall that defines a casting cavity containing the at least one LED. The closed rear wall and the sidewall are formed of a heat conductive material to dissipate heat generated by the light source module, and the sidewall has at least one exterior width dimension of less than 3½ inches. The assembly also includes a front end face coupled to the sidewall, and a twist-and-lock mechanism comprising multiple flanges that extend radially outward from a perimeter of the front end face, and/or at least one groove and/or at least one slot to form a twist-and-lock friction connection with a trim.

Abstract: Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.

Abstract: A lighting apparatus includes a housing structure having a rear face, a sidewall, a front end face, a partition to divide an interior cavity of the housing structure into a top portion and a bottom portion, and at least one exterior width dimension such that at least a portion of the housing structure fits into a space having a width of less than 3.5 inches. A light source module is positioned in the bottom portion of the housing structure, and an AC to DC converter is positioned in the top portion of the housing structure to power the light source module. A reflecting element is positioned to direct light produced by the light source module out of the housing structure. At least a portion of a front surface of a substantially flat lens is substantially coplanar with an exterior surface of the front end face of the housing structure.

Abstract: An LED lighting apparatus comprises a housing having at least one sidewall, an LED board, a lens having a back side facing the LED board and a front side opposite to the back side, and a driver module cover. The lens is disposed with respect to the LED board such that the plurality of the LEDs illuminate the back side of the lens. An adapter bracket is employed to couple the LED lighting apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snapped into the junction box, the driver module cover is at least partially disposed in the junction box.

Abstract: A recessed lighting installation assembly includes a junction box having a cavity to contain a lighting system together with electrical wires from an electrical system of a building for connection to the lighting system. The assembly also includes a plurality of telescoping hangar bars coupled to the junction box to hold the junction box in a gap between a plurality of beams in the building. Each telescoping hangar bar is extendible and/or retractable to vary a length of the bar between the plurality of beams to meet the gap between the plurality of beams. A position of the junction box is adjustable along the length of each telescoping hangar bar between the plurality of beams. In one example, the recessed lighting installation assembly does not include a can, separate from the junction box, to contain the lighting system.

Abstract: A housing has a sidewall that surrounds an interior cavity that has an open rear end and an open front end, and is divided by a partition into a top cavity and a bottom cavity. The top cavity extends to the open rear end, the bottom cavity extends to the open front end. A power supply circuit board is inside the top cavity, while a light source is inside the bottom cavity and emits light through the open front end to illuminate a room. First wires pass through an opening in the partition, and are coupled to the power supply circuit board at one end and to the light source at another end, to deliver power to the light source. A lid or cover covers the open rear end enclosing the top cavity, and is secured to the housing. Other embodiments are also described and claimed.

Abstract: An apparatus comprising an enclosure including a sidewall having an exterior shape defined at least in part by a plurality of sides, at least one curve, an ellipsoid, a cone, a cylinder, a polygon or a polyhedron. The enclosure forms a cavity, surrounded by the sidewall, to contain electrical wires providing a connection to mains electricity power from an electrical system of a building. A first telescoping hangar bar assembly is disposed on and in direct contact with a first portion of the sidewall of the enclosure, and a second telescoping hangar bar assembly is disposed on and in direct contact with a second portion of the sidewall of the enclosure opposite to the first portion of the sidewall.

Abstract: A lighting assembly includes a light source module including at least one LED, an AC to DC converter to receive an AC voltage and supply regulated electrical energy to power the light source module, a lens, and a heat-sinking unified casting. The casting includes a closed rear wall and a sidewall that defines a casting cavity containing the at least one LED. The closed rear wall and the sidewall are formed of a heat conductive material to dissipate heat generated by the light source module, and the sidewall has at least one exterior width dimension of less than 3½ inches. The assembly also includes a front end face coupled to the sidewall, and a twist-and-lock mechanism comprising multiple flanges that extend radially outward from a perimeter of the front end face, and/or at least one groove and/or at least one slot to form a twist-and-lock friction connection with a trim.

Abstract: A lighting module includes a housing formed of a thermally conducting material having a thermal conductivity greater than at least 0.5 W·m?1K?1. The housing comprises a sidewall that forms a substantially cylindrical cavity, and a flange surrounding an opening of the substantially cylindrical cavity. The lighting module includes at least one integrated electrical connector, mechanically engaged with and substantially lodged within at least a portion of the housing, to receive AC voltage from an electrical system of a building. The lighting module further includes a light source including at least one LED disposed in the substantially cylindrical cavity, and an AC to DC converter, disposed in the substantially cylindrical cavity, to receive electrical energy from the at least one integrated electrical connector and supply regulated electrical energy to power the light source.

Abstract: An LED lighting apparatus comprises a housing having at least one sidewall, an LED board, a lens having a back side facing the LED board and a front side opposite to the back side, and a driver module cover. The lens is disposed with respect to the LED board such that the plurality of the LEDs illuminate the back side of the lens. An adapter bracket is employed to couple the LED lighting apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snapped into the junction box, the driver module cover is at least partially disposed in the junction box.

Abstract: A lighting assembly includes a light source module including at least one LED, an AC to DC converter to receive an AC voltage and supply regulated electrical energy to power the light source module, a lens, and a heat-sinking unified casting. The casting includes a closed rear wall and a sidewall that defines a casting cavity containing the at least one LED. The closed rear wall and the sidewall are formed of a heat conductive material to dissipate heat generated by the light source module, and the sidewall has at least one exterior width dimension of less than 3½ inches. The assembly also includes a front end face coupled to the sidewall, and a twist-and-lock mechanism comprising multiple flanges that extend radially outward from a perimeter of the front end face, and/or at least one groove and/or at least one slot to form a twist-and-lock friction connection with a trim.