- HIGH LUMEN COB LED & ADJUSTABLE BRIGHTNESS: Experience enhanced visibility with our premium COB LED bike tail light. The optical lampshade and wide light angle design ensure you are seen while riding, adding an essential layer of safety. Easily customize the brightness to suit your riding conditions with three adjustable levels. - ULTRA BRIGHT AUTO BRAKE LIGHT: Stay safe with the ultra-bright brake light that activates when you slow down or stop. This light is three times brighter than the standard setting, ensuring maximum visibility to other road users and significantly enhancing your safety during critical moments. - INTELLIGENT LIGHT SENSING & AUTO ON/OFF: Our innovative bike tail light features built-in light and motion sensors. The flashing and breathing modes automatically activate in response to movement or low light conditions, turning off when not in use to conserve battery life and ensure efficiency. - USB C RECHARGEABLE & LONG LASTING: Power up quickly with the Type-C charging port and included USB C cable. The durable polymer lithium battery offers up to 50 hours of runtime, making it perfect for long rides without needing frequent recharges. Use Scenarios: - Ideal for night cycling or early morning rides to maximize your visibility on dark roads. - Perfect for urban commuting where sudden stops are common, allowing you to signal effectively to surrounding traffic. - Suitable for recreational biking on trails, where being seen can help prevent accidents and improve your overall safety. Compatibility: Designed to fit most bike models, this rear light is a must-have accessory for cyclists seeking safety and convenience.