The use of UV light in LED

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Thats not what I am saying,I never said it damages DNA.... I am saying if 380 does that to acrylic, nm south of that is literally used for medical sterilization and to kill bacteria and tons of other crap. So add to the discussion and try it out !!!

For the sake of setting the record straight:
380nm is absolutely fine. As a point of reference black lights used in clubs are typically 365nm. This is called UV-A and it's safe if not mistreated. It is not used for medical sterilization.
UV-C operates at around 100-280nm. This IS used for medical sterilization and is dangerous.
I hope that helps.