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 ...

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 ...