Multi-function: The flashlight can be used as an indoor and outdoor LED flashlight. 1. To identify counterfeit products, banknotes, stamps, security labels and logos. 2. It can detect the residual urine on the bed and the carpet to help you clean things more easily. 3. It will help you find cracks in antique porcelain, jewelry and glassware. 4. The four lights can be adjusted to a wide range of illuminated surfaces that you can use for outdoor fishing at night. 5. Automotive and industrial leakage inspection. 6. Helps to find fluorescent substances in children's clothing and cosmetics. If the product does not contain a fluorescent agent, a purple light will be displayed, and if the product contains a lighter color fluorescent agent, a blue light will be displayed. Specifications: Size: 35mm (head diameter) x 135mm (length) Weight: 150g (without battery) LED source: CREE XM-L T6 Battery type: 3 AAA batteries (included) Material: alloy Aluminum Lens: Acrylic Charging time: 5-7 hours Discharge time: High 3 hours Medium-6 hours Low 9 hours Flashing/SOS-6 hours Safety tips: 1. Bright flashlight suitable for children and objects that You can't see with the naked eye or see the light hurt your vision. 2. The battery should be protected from exposure to sunlight, water, chemicals or drilling gases to avoid scratching the surface.