USB Rechargeable LightBuilt-in USB rechargeable battery - 2400 mAh for the front light and 400 mAh for the rear light. The front light can last up to 6-8Hrs under strong light and can be an power bank charging the phones in case of emergency. Both the front and rear light can be recharged from any device with a USB port (2 micro USB cables included). Super Bright with 5 + 4 ModesFRONT LIGHT - (Front Headlight: Left On-Right On-2 Lights On simultaneously; Upper Headlight: Fully Bright/Semi Bright). REAR LIGHT - (Powerful Red/Weak Red/Fast Flashing Red/Slow Flashing Red). You can choose different modes according to your needs and preferences. Easy to InstallFeatures flexible and durable enough rubber straps to fit on all bikes. It holds your phone solid even on turning, bumpy roads and roads with potholes. Can be easily loosened and fasten without any tools. Fits on your bike, snow blower, mower, wheelchair, trike, boat, kayak, and more! Waterproof and Convenient The bicycle light adopts advanced waterproof and dustproof materials, which are suitable for all kinds of weather conditions, such as rain, snow and fog. Designed to meet the functional requirements when riding. The 700 lumens headlight emits stable and bright light, which improves visibility and safety in terrible conditions. Make your trip safer. Versatile, Ideal for outdoors LED bicycle light set easily illuminates the front, guides the road and warns vehicles and pedestrians behind simultaneously to provide you 360 protection. It can be used not only as a bicycle light, but also as an emergency flashlight, power bank, helmet headlight for cycling, camping, walking or other night work.