I know it's fun to mock the NFT guys for getting into many different kinds of stupid trouble but I feel like everyone needs the PSA that some of the inexpensive LED blacklight bulbs are too intense to be safe. We put one up for Halloween, I didn't realize the fixture was on & got mild eyeburn

there's also a big difference between UVA light, which is what most blacklights use, and UVC light, which is used in germicidal irradiation lights. you really want your casual fun times blacklights to not be emitting UVC.