I have a new heat source that is working very well for me. I am using a 100 watt ceramic heat emitter. This heats my Bearded Dragon's basking spot to 97 - 102 degrees F. I have a UVB light on the cage that provides light, but the emitter supplies the heat.

I am planning to get another one, and try setting it up for my snakes. My plan includes a regular aquarium flourescent bulb for light, and the heat emitter, hanging at a higher distance from the cage lid, for the heat. I will adjust the distance to adjust the temperatures in the snake enclosure.