SPECIFICATION Name: Bicycle headlight Range: about 200 meters Material: Aluminum alloy shell Weight: about 122g Waterproof: Waterproof for daily life Size: about 103*23*30mm Gear position: high light, medium light, fast flashing FEATURES Reflective Mirror, Light Cup Design:Light concentrated in the road, cut off line design opposite ride is not glare IPX3 Waterproof Level, Safety Protection.Whether heavy rain fog,Headlights can work properly to protect your safety German Standard Optical Design,An optical design for urban riding, safe riding is now starting USB Charging, Riding More Convenient:100 lumens lasting 8 hours battery life,Meet the needs of a night riding lighting.Fast charge 3 hours for 2-8 hours riding, energy-saving design Small Body, Big Power:Small body, range 200/360 meters, mini portable,Riding more easily Large capacity battery:USB charging, circuit protection design to prevent overcharging