Voberry HotSale 3 Watt 395NM UV Ultra Violet 12 LED Blacklight Flashlight UV light used to prevent forgery, authenticate documents Spot certain chemical/gas leaks, locate dangerous pests like scorpions or rodents Illuminate proteins, pinpoint leaks Identify protein-based human or pet stains Head Diameter 1.375" 38 mm, Body Diameter 1.125" or 27.5 mm Length 3.8" or 94.2 mm