Well that certainly puts a stop to some of my plans. Is this a certain manufacturer that this problem can be attributed to or is it all of them? One of my favorite sites is www.reptileuv.com they have a lot of good info, I remembered that they do sell compact florescent's but then when I looked back again it's only full spectrum and not ones that put out any UV and they recommend that they be used in conjunction with one of their mega ray flood lamps for the UV needs. The more I read about lighting for turtles the more I'm beginning to realize that it's hard to keep turtles with just one type of light source. Most places seem to recommend multiple bulbs of different types for different jobs.