I use 25 watt spots that are in most cases hanging in the electricity cable. My garter snakes never climb in them (they can't because when they trie they push the spot away because it hangs on the cable).
A single drop of water turns the bulb into a bomb of broken glass shrapnel. Be forewarned.
I've rearranged a bit since the first two photos were taken, but this is basically what I've got going on. When we get moved and settled into a new house, I plan on custom building several larger enclosures.
I was digging through old digital photos and organizing when I came across these:
In this one you can see another great use for that moss I was talking about. The moss is washed and completely dried out before using it. No bugs. Makes ecoearth/reptibark substrate look even more natural and can dampened for increased humidity.