Smart Brake Sensing Bicycle Tail Light

Intelligent Brake Sensing: Automatically activates the 100 lumens high-brightness mode when decelerating, effectively preventing rear-end collisions. The smart mode turns off after 3 minutes of inactivity and instantly activates after vibration. (Tap for auto mode, long-press for manual mode) Robust Aluminum Alloy Build: Crafted from durable and impact-resistant aviation-grade aluminum, providing reliable protection against falls and abrasions. Optical Lens Technology: Incorporates 30 high-brightness COB LEDs with an optical lens, enhancing brightness while maintaining a powerful and gentle light effect. Light Sensor Switch: Equipped with motion and light sensors, it automatically shuts off after 3 minutes of inactivity. Once movement is detected or the bike is in motion, the indicator light will reignite. Features a USB charging port for quick and convenient charging. (Brake sensing active in all modes) Extended Battery Life: Enjoy 17-54 hours of continuous illumination, ensuring r