Mounting and Usability: 360-degree rotation. The adjustable bicycle light bracket can be easily and tool-free attached to most handlebars. Perfect for mountain bikes, electric bikes, tricycles, road bikes, or commuter bikes. LED Bicycle Light: The LED headlight offers comprehensive illumination with a 120° beam angle and a range of 200 meters. This perfect bicycle light offers exceptional brightness and safety in the dark. Waterproof and Versatile: Made of high-quality aluminum alloy with 9 levels of shock, heat, and corrosion resistance, the IPX5 waterproof design ensures reliable lighting, allowing for safe cycling in the rain. Dual Switch Auxiliary Light with Dual Light Source: Embark on a night cycling adventure with integrated headlights and auxiliary lights, allowing you to choose between a steady red and a flashing red light depending on road conditions. This can be used to warn others when cycling at night, increasing safety. Power Bank for Bicycle Lights: USB smart charging, integrated multi-mode interface / built-in micro USB charging port. Charging current: 5V/2A / with mobile power bank function, output power, built-in 4000mAh rechargeable battery for more than 5 hours of use. The LED indicator shows the remaining power and can be used as a mobile power bank to quickly charge smartphones.