I don't think they like it... it kind of pissed him off actually. But i think any light would do that. He was living in a hole next to the fire pit.. so basically we invaded his home. We left him alone and never saw him the whole weekend after that.
From google search..
"All scorpions glow in the dark—even after death, even fossilized! A thin, transparent film (hyaline) in the outermost layer (cuticle) of their exoskeleton contains a protein that fluoresces. At night in the Arizona desert, you can see scorpions within a 20-foot radius by shining a black (ultraviolet) light around. They glow bright green-blue or green-yellow like scorpion jewels.
Newly molted scorpions don’t fluoresce. As the cuticle hardens, it glows more. The hylane skin toughens into an incredible substance. After hundreds of millions of years, after all other cuticle layers are lost, the hyaline layer remains, fossilized in rocks. It still glows.
We don’t know why scorpions fluoresce. Maybe it helps the antisocial creatures locate each other in the dark and either stay away (usually) or find a mate. Scorpions hunt at night and gladly eat fellow scorpions. In fact, mating is an extremely dangerous activity (to the smaller, usually male, partner)."
