Specifications: White Yellow 365nm UV flashlight LED Jade 3 lights Identification Flashlight 3 kinds of light sources: White Yellow Purple 365mm Material: Aluminum power10 power by : 18650 Battery(Not include) Lumens: 700 lumens output (Max) LED Bulb Type:3 LED Light-365nm UV LED -White LED-Yellow Warm LED Net weight: 70G SIZE133.5mm X 23.6mm Caliber15mm / 5mm Purple usefulness Amber Authenticity RMB counterfeit identification High-end security monitoring tobacco Banknote identification stamp collection Monitoring a fluorescent substance comprising jade Product clean room monitoring A variety of instruments, trademarks, documents, fluorescent printing ink industry White light: White light irradiate object penetration strong, for watching pure white jade porcelain goods. Yellow light: yellow characteristics close to natural light, non-reflective irradiation, conducive to observe Notes: please allow 1-3cm error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. Package included: 1x 3 lights Identification Torch 1x 5mm small caliber accessories