395 nM UV Ultra Violet 21 LED Blacklight Flashlight, 7305UV395 for $7.25

identify protein-based human or pet stains,. spot certain chemical/gas leaks, locate dangerous pests like scorpions or rodents. UV light used to prevent forgery, authenticate documents,. illuminate proteins, pinpoint leaks. Head Diameter 1.375" 38 mm, Body Diameter 1.125" or 27.5 mm Length 3.8" or 94.2 mm, Weight 4 oz.