The UV flashlight works by showing phosphors - a substance that emits a visible light because of radiation. Since the naked eye cannot see them, we are reliant on help to spot them; the black light makes this possible. Widely used. Perfect for outside use such as hunting scorpions and minerals, and widely used in detecting fluorescent agent, fluorescence fiber special lighting industry, such as: 1. Inspection. Clearly show small animal, pets urine, like cats', dogs' mouses', strains on carpet or furniture, or food stains on floor. 2. Counterfeit Protection. The UV light reveals 'hidden' anti-counterfeit labels to ensure the authenticity of important documents like passports and ID. The light can even authenticate banknotes. 3. Hotel Room Inspection: Use the UV light to make sure the room is clean and safe. 4. Bug Spotter: Shine the UV light on your vegetable patch to catch bugs and pests having an evening feast. 5. Outside use such as hunting scorpions and minerals. Notes - The ultraviolet led black light works perfect in dark environment, the darker it is, the better it works. - This blacklight does not work on reflective surface or carpet with fluoresce. - Due to the intensity of this UV LED device, a pair of UV protective glasses are recommended. - Please do not look into this device directly while operating nor shine it in any person's (or animal's) eyes. - Please keep it away from children and put it in dry and clean place. Caution: - 1. Not waterproof, please keep away from liquid or moisture; - 2. Do not shine directly into eyes;
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