well ask my lights plug into an outlet that's my problem, I have no electrical skills and I wouldn't be able to wire in the cfls. I looked at them but id have to build or buy something that I could screw the bulbs into and I don't want to attempt that, ill try to exchange the xenon with a 6500 cfl thougheven my grocery store sells the cfls you can grow with. i dont think you are listening to what you have been advised, so i will save my breath on that. now, on your circulation. heat rises, cool drops. you need to reverse the flow so it exhausts from the top, not bottom. this will be much more efficient.