An LED tube lamp comprises a glass tube, two end caps coupled to a respective end of the glass tube, an LED light strip attached to an inner circumferential surface of the glass tube, a protective layer disposed on a surface of the LED light strip, a plurality of LED light sources mounted on the LED light strip, two first soldering pads arranged at an end of the LED light strip, two notches formed at an edge of the end of the LED light strip, a power supply module configured to drive the plurality of LED light sources. The protective layer comprises two openings to expose the two first soldering pads. The power supply module comprises a printed circuit board comprising two second soldering pads and each of the two first soldering pad soldered to the respective second soldering pad by a solder. The solder is disposed on the first soldering pad, the corresponding second soldering pad and in the corresponding notch. The power supply module comprises a rectifying circuit and a filtering circuit coupled to the rectifying circuit.

A lighting system includes a linear luminaire having a length and a width, where the length is longer than the width. Further, the lighting system includes at least two rigid pendants that are configured to suspension mount the linear luminaire from a mounting surface. Each rigid pendant is coupled to the linear luminaire via a clevis such that a joint between the rigid pendants and the linear luminaire is a clevis swivel joint that allows the linear luminaire to swing along the length to meet a seismic requirement while preventing a tilting of the linear luminaire along the width.

A light stack having an elongate body having a length extending from a proximal end to a distal end of the elongate body. A plurality of light emitting diode (LED) arrays adjustably coupled with the elongate body and arranged along the length thereof and a control module coupled with the plurality of LED arrays, wherein the each of the plurality of LED arrays is operable to pivot, thereby forming an angle relative to the elongate body. The control module configured to individually transition each of the plurality of LED arrays between a light emitting condition and a non-light emitting condition. The plurality of LED arrays configured to be adjustable to pivot on an axis at an angle relative to the elongate body.

A luminous false-wall device, comprising: a chassis constituted by at least one profile, the chassis comprising an upper part directed toward a panel to be covered, such as a wall or ceiling, and a lower part; a diffusing canvas fixed on the chassis and stretched on the lower part of the chassis; a light placed between the panel and the canvas configured to emit light in the direction of the canvas; wherein the chassis is provided with means of increasing the light intensity of the light.

A led light that includes a rigid led filament wherein the led filament can be positionally adjusted. The LED light includes a housing having an outer tube and an inner tube with a void therebetween. The inner tube has an interior volume wherein disposed within the interior volume is a filament housing. The filament housing includes an interior volume and is configured to have suspendedly mounted therein a led filament. A pair of filament housing support members are located at each end of the housing in the interior volume thereof and are operably coupled to the filament housing. A conducting wire is movably journaled through the filament housing support members and into the interior volume of the filament housing so as to electrically couple to the led filament. The conducting wire includes at least one integrally formed spring so as to facilitate tension control of the conducting wire.

Lighting systems, devices, and units that provide illumination according to a detected orientation relative to a reference plane or a reference vector. In some examples, a light bar for use on a vehicle includes first and second sets of light emitters that are selectively activated and inactive based on a detected orientation of the light bar relative to a reference plane or reference vector.

A housing assembly for an illumination source such as a UV light where there is an enclosure formed by first and second releasably mateable housing shells and a bracket having a web, and first and second laterally extending flanges, the bracket being releasably connectable to said enclosure via the flanges, the enclosure having limited rotation relative to said bracket.

A coupling unit includes first and second coupling devices respectively attached to first and second lighting devices. The first coupling device has a first coupling part that couples with the second coupling device and a first projection. The second coupling device has a second coupling part that couples with the first coupling device and a second projection. The first coupling part has at least one cross section that is L-shaped, and the at least one cross section being parallel to a longitudinal direction of the first lighting device. The first projection is perpendicular to the longitudinal direction of the first lighting device. The second coupling part has at least one cross section that is L-shaped, and the at least one cross section being parallel to a longitudinal direction of the second lighting device. The second projection is perpendicular to the longitudinal direction of the second lighting device.

An elongated lighting apparatus includes an elongated housing and one or more elongated light source. The elongated light sources are inside the housing. Each elongated light source is coupled with at least one elongated lens on the housing. There is a means mounted on the housing for adjusting the direction, or the beam angle, or both, of the light emitted out of the at least one elongated lens. The at least one elongated lens and the elongated housing may be coated with an anti-bacterial photocatalytic film that can be activated by visible light.

A retrofitting kit includes at least one of an adapter bracket and a retainer configured to engage at least one of an existing troffer light fixture and a T-bar of a ceiling system and a door assembly configured to be held in the ceiling system by the at least one of the adapter bracket and the retainer. The door assembly has a housing, the housing including one or more sidewalls, where the one or more sidewalls extend upward to define a cavity, and a plurality of LEDs having primary light axes extending inward into the cavity. The plurality of LEDs are coupled to the one or more sidewalls and positioned to illuminate at least a portion of the housing from behind with a uniform distribution of light when engaged.