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 Doug Ellingson

I agree with Mr. Bonanno's review. This robust device is everything you want and more than you want. In dark, fluorescent materials readily visible. What you want to see will be easy to see. The light, because of its wavelength and intensity, reveals many fluorescent spots that probably are not of interest. Two minor negatives: recharger is more equipment to store and it does require common USB port. Also, bulb end of flashlight (marked "Hot") does get warm after several minutes of use. I recommend recharging battery (an unusual size) after each use. Plenty of value here to justify the extra cost compared to less expensive lights.