What is the purpose of UV flashlights?

[letschat7]

that pissed them off when i tried it they almost stoped there concert

Do you mean the band from Germany?

 

[raggie33]

Yep lol 😆

 

[Dave_H]

What would 365nm UV be good for underwater i.e. dive light?

Dave

 

[PhotonWrangler]

What would 365nm UV be good for underwater i.e. dive light?

Dave

That;s a good question. I imagine there would be a lot of Rayleigh scattering of UV wavelengths underwater so I don't know how much throw you could get from one.