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Opinion: Leo Hickman on ecofriendly lightbulbs 
EducationGuardian.co.uk | by Leo Hickman | Wed, Jan 7
EducationGuardian.co.uk is the #3 News Source for LED lamp
The packaging should always tell you the equivalent wattage of the bulb. In general terms, CFLs use 65-80% less power than an incandescent bulb. Therefore, a CFL marked as "100W" could need as little as 20 watts of power. There are even some newer bulbs that use LED (light emitting diode) tech...
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