Bike Lights for Night Riding Intelligent Sensing Navigation Bike Tail Light with Long Endurance Battery and Dual Mounting Bracke _x000D_ _x000D_ Feature: 1. Intelligent Sensing: Equipped with dual chips motion sensor and ambient light sensing, automatically turns on/off and adjusts brightness based on surroundings. 2. COB High Brightness Wick: Provides ultra-bright, wide-range illumination with a 180 viewing angle for enhanced visibility. 3. Long Endurance Battery: 400mAh battery offers up to 45 hours of runtime, with Type-C charging for convenient power replenishment. 4. Two Types of Brackets: Includes saddle tube and saddle cushion brackets for flexible installation, compatible with various bike types. 5. Shake Induction Wake-up: Built-in shake sensor enables automatic sleep mode when stopped and instant wake-up upon sensing shake. Specification: Material: PC Battery Capacity: 400mAh Rainproof: IPX4 Display: Digital screen Runtime: Varies by mode, up to 45 hours Charging Time: Approx. 2 hours Size: 3.6 x 2.5 x 22cm / 1.4 x 1.0 x 8.7in Weight: Approx. 25g / 0.9oz (light) Package List: 1 x Light 1 x Bracket 1 x Silicone Strap 4 x Zip Ties 1 x Charging Cable 1 x User Manual : : _x000D_ _x000D_ _x000D_