I feel more confused about this than before I started reading this thread.

Nah, that's not really true, but just so i know I got this:
Here's what I gather (tell if I'm even close):
Real sunlight: UV+"normal"+infrared
Real moonlight: "normal" only (?)
Nightglow would then simulate the moon, and dayglow would simulate sunlight. Nightglow is made to produce as little heat as possible (depends on brand) just like the moon.
Ok.
How about blacklights? Those are the ones that can cause severe problems right?
They emit UV(?). And nothing else(?). ...and that can cause problems since snakes can't see UV, and the eyes are therefore damaged.
What I don't understand is how normal (human visual spectrum) blue colored lighting can harm snakes...

Is that "blue" actually "black"?
Just out of curiousity, does anybody have some kind of chart on the cornsnakes visual spectrum?