Originally Posted By: hybrid8
I've found in all locations that letting the CFLs warm up (maybe up to 2 minutes) has produced a brighter environment than the incancesdents they've replaced. Probably at or near the rated comparison most manufacturers include on their packaging.


That might be down to equivalency expectations. In the UK 20W and sometimes 18W CFLs are sold as being the equivalent to 100W incandescents. Looking at www.energystar.gov it would appear that on the other side of the pond 100W equivalent means 23-30W.

I can't say I'm surprised to discover this...
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