Brake Light: High beam is activated for 3 - 5 seconds when braking - Motion Sensor: Automatically turns on when it detects movement and turns off after 45 seconds if stationary - 6 Different Light Modes - USB Chargeable - Battery capacity: 500mAh - Maximum Run Time: 15 Hours - Waterproof IPX6 - Aluminium construction - Weight: 56g - Two bracket options: Silicone (seatpost), Aluminium (saddle) - Lumen: 46 lumen