From the way you worded it, I'm not sure if you got it for nighttime or 24/7 use. During the day, he needs bright white light, so it's not good for him then. During the night, the light on him will keep parts of his brain active and he won't be able to sleep as deeply as he needs. If your temps are dipping below 60* F at night, then get a ceramic heat emitter, otherwise it's not nessisary to have any extras warming up the tank. 10-12 hours of cool down at night is good for them.