The back plate has four lateral walls and a bottom plate. A back side of the bottom plate includes multiple sets of folding hooks. Each set corresponds a different installation platform. One of the multiple sets of folding hooks is folded to be used for hooking to a corresponding installation platform. The light source module has multiple LED modules disposed on the bottom plate. Each LED module has a LED device and a lens. The lens diffuses a light of the LED device to be evenly emitted from the lens and broadening an output angle of the light via the lens. The diffusion plate with a peripheral edge is fixed to the four lateral walls of the back plate. The driver cover is attached to an external side of one of the four walls of the back plate. The driver cover defines a container cavity for concealing the driver module.

A high-lumen light-emitting diode (LED) luminaire assembly in a harsh and hazardous environment is provided. The luminaire assembly includes an integrated mounting module manufactured as a single piece and including a first side and a second side opposite the first side. The luminaire assembly also includes an LED assembly coupled to the mounting module at the second side of the mounting module, and a driver configured to provide electricity to the LED assembly. The luminaire assembly further includes a driver cover sized to cover the driver and coupled to the mounting module at the first side of the mounting module. The driver and the LED assembly are operable within a target peak temperature limit for the hazardous environment.

A solid state lamp includes a connector and a bulb portion with multiple strips.

A solid state lamp includes a connector and a bulb portion with multiple strips.

An LED illumination device corresponds to a compact fluorescent lamp and has improved thermal properties. The illumination device includes a transparent tube having an inner wall defining a cavity, a light engine having one or more light emitting diodes, and a driver to drive the light engine. The light engine is disposed at the inner wall of the transparent tube. The arrangement of the light engine and the one or more light emitting diodes at the inner wall of the tube provides improved lighting characteristics. Simultaneously, an improved cooling is provided by the interface surface for conducting heat between the inner wall and the light engine.

An LED illumination device corresponds to a compact fluorescent lamp and has improved thermal properties. The illumination device includes a transparent tube having an inner wall defining a cavity, a light engine having one or more light emitting diodes, and a driver to drive the light engine. The light engine is disposed at the inner wall of the transparent tube. The arrangement of the light engine and the one or more light emitting diodes at the inner wall of the tube provides improved lighting characteristics. Simultaneously, an improved cooling is provided by the interface surface for conducting heat between the inner wall and the light engine.

A downlight apparatus includes a driver box, a light source, a light housing, multiple leaf springs, multiple shaft connectors and multiple pads. The light housing has a light holder and a rim. The light holder has a holder plate and a holder wall defining a holder cavity. The multiple leaf springs are placed between the driver box and the light holder. Each pad has a pad hole and a pad scraper surrounding the pad hole. The pad scraper has a protruding part engaging an electric insulation layer on a top side of the holder plate. The shaft connector sequentially passes through a spring hole of the leaf spring, the pad hole and the top plate of the light holder. The protruding part of the pad scraper scraps a portion of the electric insulation layer of the holder plate for connecting the holder plate to ground.

A solid state lamp includes a connector and a bulb portion with multiple strips.

A solid state lamp includes a connector and a bulb portion with multiple strips.

A light source that is adapted to replace existing fluorescent tubes in an existing fluorescent light fixture is disclosed. The light source includes a plurality of LEDs mounted on a heat-dissipating structure, first and second plug adapters that mate with the florescent tube connectors of the fluorescent tube the light source is to replace, and a power adapter that converts power from a fluorescent tube ballast presented on the first and second plug adapters to DC power that powers the LEDs. The light source is powered from the output of the existing fluorescent ballast. The light source can utilize the existing metallic enclosure as a heat-radiating surface and/or direct air heat transfer from the surface of the heat-dissipating structure.