Brooks Kingsnake strange digestion and behavior? (diarrhea and biting himself)

[Hugsplox]

For a king snake I'd use either a deep heat projector (DHP) or ceramic heat emitter (CHE) instead of a bulb as you can set them and leave them on all the time; they don't emit light. They also last a lot longer than bulbs - think years not months - and all of the energy they draw becomes heat, so while they're more expensive initially they will save you money over time. The room ambient light is fine for a day/night light cycle.

^This
I just pulled my receipt up for the last 100w Zoomed CHE I got and it was only $32 here in Georgia, and that thing has been running on a stat non-stop for the past 6 months with no issues. I check temps with my infrared gun in the morning when I start work and in the afternoon when I shut down and other than that I don't have to worry too much about it. Like Bcr said, if you have a window in your room/reptile room the ambient light should be enough. I just open the blinds in the morning and the way the sun comes over my house creates a very natural day/night cycle in my office for all the animals.