LED Induction Headlight USB Charging Outdoor Waterproof Strong Light Fishing Aluminum Flashlight Headlight Parameter: LED: Leites lamp beads Power: 5W Life: 50000h Battery: 18650 lithium battery Switch: Press the bright light once, and press the gesture sensor twice (with the hand within 10cm of the headlight). Life time: depending on battery capacity Material: aluminum alloy Size: 87*33*30mm Charging: USB interface charging function Power: 500mAh Instructions for use 1. Check the battery: make sure the battery has been charged and installed in the correct direction. 2. When using, please choose according to the voltage and battery requirements, do not use it at will, so as to avoid the circuit board from burning out. Do not use batteries of different types and voltages at the same time. 3. In use, when the brightness changes greatly, please turn off the headlights to prevent over-discharge of the battery. Please pay attention to the waterproof, moisture-proof and drop-proof of the battery. 4. If the battery is not used for a long time, the battery should be taken out and kept properly to avoid chemical corrosion; 5. Keep the inner wall of the lamp cup clean. Do not wipe with hands or hard objects. To remove fingerprints on the lens, you can gently wipe it with a cotton swab dipped in lens cleaner. 6. Do not keep the flashlight in contact with sunlight, water, chemicals and corrosive gases for a long time, so as not to damage the flashlight; 7. Non-professionals should not disassemble the headlight to avoid damage to the circuit board.