Lighting is a major user of electricity. It also generates heat, contributing to cooling loads that are generally met by using more electricity for air conditioning. Thus, improving the energy efficiency of lighting has benefits that go beyond the direct electricity savings by the lighting products.

Fluorescent lamps are three to four times more efficient than incandescent lamps. Quality fluorescent lamps today provide far better light quality than the older lamps that often produced a bluish cast. Electronically ballasted fluorescent lighting also doesn’t generate the hum and flicker that many people find objectionable in older, magnetically ballasted fluorescent lighting. Both straight-tube fluorescent and compact-fluorescent lamps (CFLs) are widely available. In general, thinner-diameter fluorescent lamps offer higher efficacy (lumens per watt) than larger-diameter lamps.


Products in Lighting

Build-Lux, Inc.
CFL Fixtures
Technical Consumer Products, Inc.
Feit Electric Company, Inc.
Gardco Lighting


Apr 11, 2014 9:55 AM ET

Response to Tom Ruben
by Martin Holladay

The best place to post your question -- the place where your question is most likely to be seen by dozens of helpful GBA readers, some of whom are probably eager to offer useful advice -- is on GBA's question and answer page. Here is the link:

Apr 11, 2014 9:43 AM ET

suggestions for outdoor motion sensor lights
by tom ruben

Please comment on the following:
Wired or battery? Ease of installation is nice for battery and allows for moving if you make a bad choice of placement.
Type of bulb?
Max degree range for picking up motion?
Use to deter vandalism without lighting the whole neighborhood?
In general a recommendation for motion lighting on the back wall of a house. Should be out of reach for vandals.