Beginning in 2005, efficiency standards set by the Department of Energy regulations were phased into effect, covering magnetic ballasts designed to operate full-wattage F40T12, F96T12, and F96T12HO ...
Fluorescent light fixtures are more efficient and cheaper to run than incandescent. But some fluorescent fixtures buzz or hum, and they take a long time to start when temperatures fall much below ...
Despite brisk sales of 4-ft T12 fluorescent lamps, the magnetic ballasts commonly used for the lamps’ operation will start becoming part of the past on July 1, 2010, when their continued manufacture ...
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