Lighting Science Group Corporation

Yong Jiang

Mark Penley Boomgaarden

Richard LeClair

Matthew C Montgomery

A luminaire comprising a heat spreader and a heat sink disposed around and thermally communicates with the heat spreader. The heat sink forms a trim plate configured to be disposed completely external of a can light fixture or an electrical junction box. The luminaire also includes an optic securely retained relative to one of the heat spreader and the heat sink on one side of a plane defined by a lower surface of the trim plate and extends to the other side of the plane defined by the lower surface of the trim plate, as well as a light source disposed on the heat spreader and comprising a plurality of light-emitting diodes (LEDs). The plurality of LEDs are positioned entirely on one side of the plane defined by the lower surface of the trim plate. The light source is in thermal communication with the heat spreader.

Low profile light

A luminaire comprising a housing formed of thermally conductive polymer with an optic carried thereby, a trim carried by the optic, and a light source. The light source may comprise an LED board comprising a copper layer and a plurality of light emitting diodes (LEDs) disposed on the LED board. The luminaire may also comprise control circuitry operably coupled to the plurality of LEDs, wherein the LED board is positioned in thermal communication with the housing. The luminaire may further comprise a mounting member configured to be attached to each of the housing and an external structure. The control circuitry may be configured to operate the plurality of LEDs such that heat generated by the plurality of LEDs is dissipated by the copper layer of the LED board.

Low-profile lighting device and attachment members and kit comprising same

A bleeder circuit includes a first resistor, a thermistor, a transistor, a second resistor, and a diode section. The first resistor biases the transistor into an always-on status. The second resistor prevents current from flowing through the thermistor responsive to a voltage at the positive terminal being greater than a minimum forward voltage of a load. The thermistor increases in electrical resistance, limiting the current flowing therethrough and preventing damage to the load responsive to the load short-circuiting.

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Satellite Beach, FL, United States of America

Yong Jiang