Stop, stop, stop. Here's what you said (post #16), "I've seen photo-quality CFL tubes of around 200 watts - equivalent to 1Kw of tungsten." All you had to say (at least to satisfy me) is that you have not actually SEEN them, but rather just read it in their literature. My post #18 on the matter is from experience in trying to find such an animal, with no success. My post #13 gives the reason why I don't think they exist.