Mike,

I switched to using a Ceramic heater for the heat source and regular bulbs (produce little to no heat) for my terrarium. The Cerramic heater provides heat more akin to the sun than a bulb (It is a radiant heat). This has helped my substrate stay moist longer without flash drying the surface.

For the regular bulbs you will want to use the type of bulb proper for your little guy. If he requires UVB or UVA. I use Exo Terra Reti-Glo Compact Fluorescent Full Spectrum 26 watt x2 for my terrarium as a reference.

Don't know if this will help or not.


Oh and I'll add I have a 18x18x24 terrarium and a 100w ceramic hearted easily keeps it at 78F