【Excellent Visibility with Innovative Yellow/White Light Switching】 Equipped with two LEDs, allowing one-touch switching between yellow and white light. Yellow light excels in penetrating fog, rain, and snow, while white light provides wide and bright illumination for night riding. Boasting a maximum illumination distance of 300m, a 180° wide-angle beam, and 1000 lumens of high brightness, it can be flexibly used depending on the weather and scene. Enhances visibility and safety, making it suitable for both road bike and cross-bike use, from city streets during commutes to mountain trails in the outdoors. 【Near/Far Light Switching & 13 Lighting Modes】 Features 3 modes: near light, far light, and all-lights-on, allowing for easy operation. High beam: Short press the upper button to switch between 5 levels: strong, medium, weak, flashing, and SOS. Low beam: Short press the lower button to switch between 5 levels: strong, medium, weak, flashing, and SOS. All-lights-on: Activate by quickly pressing either button twice. Supports 3 levels: strong, medium, and weak, and can be switched using either button. The memory function (excluding all-lights-on mode) allows it to restart with the previous settings. 【Durable Aluminum Alloy Body & IPX5 Waterproof Design】 Made of robust and durable aircraft-grade aluminum alloy, featuring a screwless, one-piece design. Resistant to shocks and vibrations, allowing for safe use on outdoor rides and unpaved roads. Furthermore, it is equipped with a 5mm thick waterproof rubber ring, achieving excellent IPX5 waterproof performance. Provides stable illumination, even in harsh weather and road conditions, including rainy and snowy days. 【Lithium Polymer Battery & PSE Certified】 Equipped with a lithium polymer battery (2000mAh) comparable to smartphones. Superior in safety and stability compared to conventional lithium-ion batteries, ensuring peace of mind even during extended use. Also certified by Japan's PSE, meeting safety standards. Furthermore, it supports convenient USB-C charging, allowing for easy and speedy charging. The large capacity supports long hours of continuous use and ultra-long standby times. 【Compact, Lightweight, and Easy Installation】 This bicycle light is lightweight at approximately 95g and compact, making it convenient to carry. Installation is easy: fix the bracket to the handlebar, insert the main unit into the groove, and rotate it approximately 45 degrees until you hear a "click" sound to secure it firmly. It can be quickly removed during commutes, helping to prevent loss, and providing peace of mind. ※ A light bracket is included with this product, and there is no need to purchase one separately.