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U.S. Department of Energy
Office of Scientific and Technical Information

Energy savings with solid-state ballasted high-pressure sodium lamps

Conference ·
OSTI ID:6525630
The performance of three types of solid-state ballasts used to operate high-pressure sodium lamps is discussed. Each type of solid-state ballast has been designed to operate an HPS lamp of a different wattage (150, 200, and 400 watts). The performance of these ballasts compared to standard core-coil ballasts operating the same HPS lamps shows that system efficiency improves as much as 17%. The solid-state ballasted HPS system also demonstrates excellent regulation with respect to input voltage and output power. These new ballasts can dim the HPS lamps and reduce flicker from more than 60% to less than 3%. Refitting street lighting with these new HPS systims provides an attractive return on initial capital investment.
Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6525630
Report Number(s):
LBL-12595; CONF-810590-1; ON: DE81023202
Country of Publication:
United States
Language:
English