It's a 40 gallon breeder, substrate is newspaper. The coil was a 10.0, the uvb strip is a Zilla slimline desert fixture, desert 50 uvb T8 flourescent bulb, 18 inches. There is a mesh top. I'll have to get another therometer as the other broke, but right now I have a double sided lamp, one side with the 100 w desert bulb and the other with the 150 w night bulb, both on right now.