Introducing the Q5 Tail Light, designed for ultimate visibility and convenience during your rides. Crafted with a full 6061 Aluminium alloy chassis, this COB LED light ensures durability. It features automatic on/off functionality based on light intensity and motion, switching to sleep mode for power savings. The seat rail mounting, four flash modes, and 20hrs+ runtime make it a versatile choice. Powered by a 400mAh Li-ion rechargeable battery, it has USB charging and a battery indicator. Weighing just 55g, its compact and lightweight design, along with IPx6 waterproof rating, makes it your ideal cycling companion. Ensure a safe and illuminated journey with the Q5 Tail Light. Charge using the provided cable for optimal performance.