We use a combo of 100 watt floods & the Active UV bulbs for heat & a little extra oomph.
Tight beams/spots with any reptile scare me...most of the time the critter will move, but if they're ever stuck in a situation where they can't get away from the light (accidents CAN happen), then they're pretty effectively screwed.
I guess I come from the "better safe than sorry, and if there's a way to do something stupid, someone will eventually find it" school of thought.
K~