JacobsParts FLT-D 365nm 5W UV LED Flashlight with Adjustable Focus for Counterfeit Detection, Document Verification, Photography, and Bodily Fluid Identification 365nm UV light is the best choice for use in document verification, counterfeit detection, photograp An adjustable focus allows the user to choose between a small point of high intensity or a larger ar 365nm UV light produces a near pure UV output that allows you to see a greater range of colors witho Powered by 1 x AA battery (not included)