It isn't a bulb, it's a long glass tube (don't know the English name) and I've allready got a dimmer on it. It doesn't emmit much warmth and it really isn't bright. A breeder I know uses the same light. For heating I use a keramic bulb in combination with another dimmer. It's almost 1.5 years ago when he ate his own feces (just one time), so I think worrying about that incident is a waste of time at this moment. My pac is eating well and is doing fine. I've provided enough hides and there are several plants in his enclosure. I'm also not a beginner so I appreciate your concerns, but believe me that it's not necessary. I never mentioned that he doesn't eat anymore, because he never had any problems eating btw.