Hello.. and welcome! I don't know what the T3 uses for heat.. I would try to avoid using a lamp if possible as it removes most of the humidity.

Proportional t-stats are better, but on-off are an acceptable alternative. Ranco or Johnson are the brands of choice. Unless you are breeding snakes, there is NO need for a night drop. Keep your snake at constant temps of 92-94 warm side and 82-84 cool side. Nothing ever below 80 degrees.

Take a look at our care sheet if you haven't already, it answers a lot of questions.

http://www.ball-pythons.net/modules....warticle&id=52