Method and apparatus for retrofitting HID lamps with system...

Details Method and apparatus for retrofitting HID lamps with system... Method and apparatus for retrofitting HID lamps with system...

2006-01-18

2010-11-30

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S224000, C315S2090SC, C315S312000, C315S307000

Reexamination Certificate

active

07843144

ABSTRACT:
A method, apparatus, and system for increasing usable light from a high intensity lighting fixture to a target area without an increase in energy use. In one aspect, the circuit is retrofitted into an existing lamp circuit that allows selective change in operating power or wattage to the lamp, over a substantial period of operation time, to save energy. In one aspect operating wattage of the lamp would be reduced. In another aspect of the invention, reduction in operating wattage is accomplished by a switchable capacitance in electrical communication with the lamp circuit.

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