Here's his tank, I have a 25w "moonlight" bulb. It's 81 in the cool end and 92 on the branch where he is sitting, I don't have the thermometer on it constantly, because the probes in it are kind of big. I used a digital dual probe smoker thermometer to get the temps right. I tested it and found it to be consistent with my other reptile specific thermometers. I also borrowed the hygrometer probe from chameleons cage and it read 46-47%.