There is a Hygrofarm( look it up on amazon) thermostat for around 25$ that works pretty well for reptiles. I have one that I'm using for the two female geckos. For the sand boas I got a dimmer at lowes for under 20$ and I'm in the process of setting it up ( they were ordered online, and will be here on Wendsday). The bp and male leo have a lamp that heats the whole room up to around 80 f and their cages at around 85f on the warm ends.