usually in the form of long white tubes, but now you can buy them curled up into light-bulb shapes, called compact fluorescent lights, or CFLs. ...
Superior Lamp Inc Now Offers New Heavy Duty LED LampsPR Leap (press release)
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Many of us long ago started to make the switch over from incandescent light bulbs to compact fluorescent lamps (CFLs) in an attempt to help reduce carbon emissions. They might cost a bit more up front, but it is estimated that CFLs use about one-fifth of the energy of a standard bulb as well as...
Wed, Jan 7 | from EducationGuardian.co.uk