Mini UV Blacklight Flashlight, 365nm Fluorescent Agent Detector for ID Checking and Pet Stain Finding with Pocket Clip by RUIMX (5 Pack, Golden Color) SIMPLE & EASY Use blacklight flashlight- Perfect for Revealing Dry Dog, Cat, Rodent Stains and Spots that You Otherwise Couldn't See With the Naked Eye Just turn on, you could check if your mask, clothes, makeup, diaper, sanitary pad is with fluorescent agent or not. It also shows Holograms In Driver's Licenses And ID Cards. 5pcs in 1 box. Perfect for daily use or as small gift for your families, friends and clients. Golden Color, Constructed of quality aluminium alloy materials, Waterproof design. Support 14500 Li-ion Battery or AA Battery.(Not included).365nm is professional and expensive than 395nm. 365nm is is suitable for all detection and verification purposes and its visible light is weaker white color, only when you put the light to objects, you will see purple color. 395nm visible light is purple directly, its light is stronger and will affect to observation when distinguishing objects.