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 May/June 2010 Issue
Do CFLs Still Pass the Test? 
by Chris Granda and Glenn Reed
Chris Granda (Image credit: Grasteu Associates)
Glenn Reed (Image credit: Vermont Energy Investment Corporation)
The combined efforts of lighting manufacturers, retailers, energy efficiency program sponsors, and the Energy Star for CFLs program have succeeded in moving CFLs from the margins to mainstream. Energy Star-labeled CFLs still promise some of the cheapest and easiest energy savings available. What do we know about CFL performance, and are manufacturer claims credible? On January 26, 2010, the Department of Energy (DOE) sent out its latest delisting letter, removing 34 CFL models from Energy Star because independent, third-party tests showed that actual performance did not comply...
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