I have a couple questions regarding black lights. First off, are black lights bad for you your eyes? Also, if black lights emit UV rays, could you get a tan from them?
Blacklights don't give off any more UV than a regular flourescent light. While you could get a tan from them, it will take a reeeaaaalllly long time. They are bad for your eyes though. In normal light your pupils dialate to let in only a little bit of light. this protects your eyes from the UV rays. With black lights since don't give off a lot of visible light, your pupils stay wide open, and lots of UV gets in.
