I had pythons for years and don't remember having that kind of trouble with lights, but I also can't remember if we were using reptile lights. I'm thinking not. We use two 125 red infrared heat bulbs. That provides the correct 250 watts, but you still have some heat until you can replace a bulb if one goes out. They seem to last forever, like years unless you have them on 24x7x365, which nobody would unless they were always brooding.