A brighter, lighter business idea. (office lighting conservation)

If you are reading this magazine at your desk, chances are that all the lights in your office are on--even though the sun may be shining brightly outside the window. The fact is, lighting accounts for 20 percent to 25 percent of the total amount of electricity used annually in the United States, according to EPA figures, and 80 percent to 90 percent of that amount is used by industry and business.

The EPA estimates that more than half the electricity used for lighting is wasted through inefficient technology and poor design, and that if more energy-efficient lighting were used, the nation could cut its electricity bill by more than 10 percent. So why aren't American …