Hi guys,
I joined a bearded dragon forum, and it seems to be a pretty active and friendly community similar to this one. Many people on the board are stringently opposed to using compact fluorescents for uvb. Here is a thread discussing it, I don't know if any of this applies to turtles, but I wanted to bring it up for discussion and see what the more knowledgeable people on this board have to say about it.
http://www.beardeddragon.org/bjive/view ... t=coil+uvb


