High efficiency lighting system

Details High efficiency lighting system High efficiency lighting system

2007-05-29

2007-05-29

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Plural load device systems

C307S064000, C307S066000

Reexamination Certificate

active

11007965

ABSTRACT:
A high efficiency lighting system maintains normal lighting conditions by lighting fixtures requiring DC electrical power. A power control device receives AC electrical power from a public utility converts AC power to DC power and delivers low voltage DC electrical power to lighting fixtures. A standby battery is provided to maintain power during power outages. Optionally, a photovoltaic DC electrical power source may be connected to the power control device, to provide alternate DC electrical power. In a further embodiment, a gas driven cogenerator unit may supply DC electrical power.

REFERENCES:
patent: 4891740 (1990-01-01), Brown
patent: 5089974 (1992-02-01), Demeyer et al.
patent: 5477091 (1995-12-01), Fiorina et al.
patent: 5969435 (1999-10-01), Wilhelm
patent: 6933627 (2005-08-01), Wilhelm

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