Compact Fluorescent Lights (CFLs) can save a significant amount of energy. For example a “60 watt replacement” CFL only uses 13 watts of energy instead of the 60 watts that the incandescent version uses, or 21.6% of the energy. On average, CFLs use about 25% of the energy that an equivalent incandescent bulb does.
This is why we use almost 30 of these bulbs in our home.
There are some concerns with the use of CFLs. They use Mercury and need to be disposed of properly. See the sub menu on the right for more information on these issues.