So, im panning on getting my daughter a bearded dragon. I have built a 4'*2'*2' enclosure. I know i need a hot and cool area. Ive got the hot area figured out, but im having trouble with the UVB light cool area. I have heard you should have 2/3 of the enclosure lit with the UVB, So i have been looking for 36" Light tubes but they seem to be harder to come by, and a fixture has been tough too. All i can find are the hoods for an aquarium. any help or advice on the lighting would be great. Heres a picture of the enclosure so far.