Compact fluorescent lightbulb

1 byte added, 17:15, March 18, 2008
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[[Image:CFL.jpg|right|thumb|A CFL]]
Compact Fluorescent Lightbulbs are new, energy efficient lightbulbs. The ones provided by Facilities use only 15w but provide light equivalent to 60w, although other wattages are commercially available. In general, they use 1/4 of the energy wattage of an incandescent bulb producing the same amount of light.
Additionally, they produce more low-spectrum (blue) light (i.e. they have a higher color temperature). This more closely emulates the spectrum of natural sunlight and is thought to have more of an impact on circadian rhythm. This means you will be more alert during late night study sessions with compact florescent bulbs than with incandescents.