This light is surprisingly bright considering it only requires a single AA. It also seems to put out the advertised wavelength of 395-410nm. This means that there is also a considerable amount of visible violet light in the output. However, shining the light on a fluorescent material reveals that a large proportion of the output is still in the UV range.... Read more
This little flashlight is very well built. It definitely produces light in the UV spektrum. I used it to check out the laundry room in my apartment building for fun and quickly decided to stop because I saw so much stuff glowing in there! Sometimes ignorance is bliss. It works great as a counterfeit bill detector! Very bright in that application. Not ... Read more
Nicely designed body and fits well in the hand.
Solid click of the switch. Randomly turns itself off when powered by rechargeable NiMh cells and lithium primary cells. I am unsure if it's overheating or if the switch is bad.
I took the switch apart and reassembled it. It worked OK for about 5 minutes and then shut off again. I bought this light to use ... Read more
Very well made, solid connections, compact. Glass lense, smooth threads. Positive click switch. Very powerful for a UV light. Moderate hotspot with good spill. Really lights up UV reactive elements. The lanyard gets in the way sometimes because it's too long. I was interested in this because it's a single powerful emitter instead of an array of smaller ... Read more
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