A fastening device (1) is adapted to fasten a recessed object (30) to a wall. The object has at least one through hole (20) and includes a rod (2), a bracket (3), and a locking element (4). Systems also include at least one fastening device (1) and a recessed object and procedures for the installation of the systems.

A driving device of an embodiment includes a first rotational unit and a holding unit. The first rotational unit is disposed with an object to be operated on one surface side intersecting with a first rotating shaft, and rotationally moves around the first rotating shaft with the object to be operated. The holding unit is disposed on another surface side of the first rotational unit, rotates with the first rotational unit, and holds a cable for supplying power to the object to be operated at a position away from the first rotational unit toward the other surface side, while placing the cable along the first rotating shaft.

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 luminaire can comprise at a light source, a lightguide, and a reflective surface. The lightguide can comprise two major surfaces, for example two faces of a panel of optical material. The light source can couple light into the lightguide through an edge of the lightguide. The coupled light can exit the lightguide through the major faces of the lightguide. The reflective surface can be oriented to receive and redirect the light emitted from the lightguide. Via this redirection, the luminaire can emit illumination in direction that is different from the light source's emissions. For example, the light source can emit light upward and into the lightguide, the lightguide can emit and distribute that light outward, and the reflective surface can redirect the light downward.

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.

An inline driver module includes an input connector, the input connector comprising a live contact and a neutral contact, the live contact configured to connect to a live line of an AC power socket, the neutral contact configured to connect to a neutral line of the AC power socket; an output connector, the output connector comprising a positive contact and a negative contact; and a driver module, the driver module disposed between the input connector and the output connector, the driver module comprising a driver housing and a driver PCB, a driver housing cavity defined within the driver housing, the driver PCB disposed within the driver housing cavity, the driver PCB connected in electrical communication with the live contact, the neutral contact, the positive contact, and the negative contact, the driver PCB configured to convert an AC power input from the AC power socket to a DC power output.

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.

Some of the present downlights include a housing having a thermally-conductive upper wall, a lower wall that defines an aperture, and a sidewall extending between the thermally-conductive upper wall and the lower wall, and a light fixture including or configured to receive a light source, where the light fixture is configured to be coupled to the housing such that the light source is adjacent to and in thermal communication with the thermally-conductive upper wall. In some downlights, the thermally-conductive upper wall is removably coupled to the sidewall. In some downlights, the light fixture has a reflector configured to direct light from the light source and through the aperture, and the light fixture is configured to be coupled to the housing such that the reflector is spaced apart from the sidewall.

The present invention provides a method for constructing a universal LED bulb, a flange snap ring type LED bulb and a lamp. A heat conductive bracket (3) is used as the structure supporting main body to establish an optical engine core member. A thin-shelled lens snap ring (8) is used to support the optical engine core member in an auxiliary manner. An installation flange hole is provided to the lens snap ring (8), correspondingly to an installation flange hole of the heat conductive bracket (3), to surround and protect the heat conductive bracket (3). The optical engine core member is composed of the heat conductive bracket (3), an optical engine module (4), an inner snap ring (81) and a light distribution optical lens (7). An inner cover (6) is provided outside the optical engine module (4). An electric connector (11) is provided to the heat conductive bracket (3).