Abstract: A dimming control and driver for an LED luminaire comprises a shutdown relay connected between an AC source and the driver circuit. The shutdown relay will close above a predetermined control voltage, and will open below the predetermined voltage. The shutdown relay will eliminate parasitic loss by turning the power completely off when the LED luminaire is turned off.

Abstract: The present disclosure generally relates to several embodiments of a new illumination device using a plurality of LEDs, the device is designed to better diffuse heat produced from a heating driver circuitry and the LEDs in a way that allows for either the operating or equilibrium temperatures of the heat sensitive elements as part of the device to be subject to less stringent temperature increases and therefore improve the viability and energy performance of the device. The new design includes toroid-shaped external rings for the plurality of LEDs and a middle opening for the driver circuitry. The new design further includes fins and the use of different spaces and openings within the housing to help control the flow of heat by way of thermal conduction, thermal convection, or thermal irradiation.

Abstract: A light emitting diode (“LED”) illumination device includes a substantially rigid reflector cover having a plurality of open air reflectors, a circuit board having a plurality of LED packages and a plurality of thermal vias disposed in the circuit board in the vicinity of each LED package thereby defining a pressure zone, and a mounting bracket that functions as a heat sink The base of each open air reflector is dimensioned to cover at least a portion of the pressure zone. Fasteners are used to mechanically couple the reflector cover to the circuit board and the mounting bracket and to create pressure on the thermal vias in the pressure zone. In operation, heat created from operation of the LED illumination device is effectively dissipated into the atmosphere and is simultaneously pulled away from the LED packages through the plurality of thermal vias to the mounting bracket.

Abstract: The present disclosure generally relates to several embodiments of a new illumination device using a plurality of LEDs, the device is designed to better diffuse heat produced from a heating driver circuitry and the LEDs in a way that allows for either the operating or equilibrium temperatures of the heat sensitive elements as part of the device to be subject to less stringent temperature increases and therefore improve the viability and energy performance of the device. The new design includes toroid-shaped external rings for the plurality of LEDs and a middle opening for the driver circuitry. The new design further includes fins and the use of different spaces and openings within the housing to help control the flow of heat by way of thermal conduction, thermal convection, or thermal irradiation.