Posted on August 29, 2011 by Scott Gibson
in Q&A Spotlight
Standard incandescent light bulbs are among the most profligate energy consumers available, turning more than 90% of the energy they consume into heat rather than light. These old-school bulbs are inexpensive and cast a pleasingly warm light, but their days are numbered.
Compact fluorescent lamps (CFLs) are gradually taking their place. Although they’re more expensive, the cost is coming down and dimmable versions have become available. Bulb life is much longer and, more important, CFLs deliver much more light per watt of electricity than incandescent bulbs.