XUEMEI Professional 365nm UV Flashlight: Equipped with 5W LG 365nm shorter wavelength UV LED. UV flashlights become professional for some specific users. 365nm UV light is invisible to the naked eye, so it is not as bright as a 395nm UV flashlight. Please clarify your needs before ordering. Black UV Filter Lenses: Equipped with hard toughened black filter optics that filter out ambient light and block visible light, but allow 340-380nm UV rays to pass. This approach helps reduce visible light interference. USB Torch UV: Built-in 1200mAh rechargeable battery with micro-USB charging cable and output port. It can be used as a power bank in emergency situations. The indicator light is red when charging, and green is fully charged. No need to buy or find batteries before use. Everything you want will be provided in this UV flashlight. HIGH QUALITY MANUFACTURING: Black light flashlight made from aircraft aluminum body. Lightweight and pocket sized. It fits easily into pockets, backpacks, toolboxes and your car to save space. Versatile Application: The 365nm UV torch light can reveal the invisible stains or liquids on the floor or even the grass. Such as detection of counterfeit documents, currency detection, invisible ink, amber, diamonds and jewelry detection. Dimensions: 135x27x27mm Colour: Black Packing list: 1pcs