Lighting can be a large part of any building's electrical load — 30% or more if it is heated by non-electrical means. As an energy cost-cutting measure, consider upgrading your lamps from incandescent ...

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 ...