Blacklight Flashlights, 711TEK 51 LED Ultra Violet Flashlight 395-405 nm UV Detector Light for Dog Urine, Pet Stains and Bed Bug, Scorpion Hunting. Also works with A/C refrigerant leak test fluid. very bright for a blacklight. Good size, not too big easy to use! https://www.amazon.com/Blacklight-Flashlights-711TEK-Flashlight-Detector/dp/B078NRYXJY #Rankboosterreview, #711TEK, #Merry