i bought a 250 watt light (red) at farm supply. i am into my 3rd week with it and i just noticed its no longer red. i wonder if mine was defected or just cheap. i haven't found any other place to get them. i think i remember seeing some at pets mart but they were pretty small, anybody use these? or have ideas where to look? home depot only had the 150 watt white light. i could probably go with a 150 watt red light by now.