+1 to Pro Products. I've used one in the past for my bearded dragon and now I have one on the way for my new enclosure (from Constrictors Northwest) so that I have a more permanent place for my BP to live.

They are a tad pricey...but they are UL listed, low wattage, will like...never break, dont burn, and have like zero risk for any kind of malfunction/fire (made up of non flammable parts)

The pros...easily outweigh the cons. It's like if Mike Tyson fought a newborn.