Review on ALONEFIRE SV003 10W 365Nm UV Flashlight Portable Rechargeable Blacklight For Pet Urine Detector, Resin Curing, Scorpion, Fishing, Minerals With Aluminum Case, Battery Charger, Battery Included by Matt Tebow

Pro's:* Can see a scorpion from a good 20ft away* Lights them up even in cracks in the walls (they'll even shuffle around because of the amount of light they are emitting!)* Puts off hardly any visible light, mainly just luminescences anything that can. Some things will light up a room based on the light they emit from it!* I can't really see needing a brighter light for backyard/house scorpion hunting* Rechargeable batteryCons:* You should wear some kind of plastic eye covering when using it. Just the bounced back near invisible light seems to make my eyes really strained after 10 minutes of using it (but using clear safety lenses gets rid of that)* Gets warm fairly quickly- not super hot, but glad the case is aluminum, and dissipates heat- this LED burns through some power!Summary:Best black light I've used, and I have a different 100 LED light I had bought previously that's 1/20th as useful (a lot more visible light making it harder to see luminescence, and things glow at 1/10th the brightness, and only about 10ft away).I would get this again for sure. I was considering getting the 3 LED version, but it's much more expensive, and would only be more useful if you're looking for stuff further than a 20-30ft backyard.