Hello i need a good UV led flashlight in the 315 to 400nm range. Also is there a led flashlight in the 200 to 280 nm range? i need these 2 ranges for gem work thank's
Look up "UV Flashlight" on eBay - you'll find some that are rated 380 nm. I have one that is identical to them, except that mine was rated 385 nm. It uses 3AA batteries and has 7 leds. It puts out very little visible light, but it lights up flourescent objects from 20 feet away. So I think it is a good UV light.