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Hey! I was going to start a thread on a DIY project for those who happen to have inefficient spiral "daylight" (6700K) compact flourescent bulbs laying around, but this is a good a thread as any. :mrgreen: Here are two pictures:



 

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Spiral compacts have major geometry issues at hand. Restrike must be addressed in reflector design or you are wasting lots of light. The AH reflector might be an improvement, but not nearly as good as a proper reflector.

Here is a reflector study I did with spiral compacts
http://www.aquaticplantcentral.com/forum/cms_view_article.php?aid=16
 

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Tony, can you recommend a place where an average Joe would be able to get access to a "metal folder"? :D
 
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