Engineered for cyclists who demand top-tier safety and performance, the Strip Pro Ai Alert 400+ Rear taillight integrates advanced Ai Alert technology with exceptional visibility features. Ten super-bright LEDs create a beam pattern designed to cut through fog, rain, or darkness, ensuring you're seen from multiple angles thanks to its expansive 270° wide-angle optics. Riders can easily switch between seven solid and flash modes, including an eye-catching Day Flash emitting up to 400 lumens for busy streets and FEMTO mode delivering an astonishing runtime of up to 80 hours—ideal for long adventures or daily commutes. Built with lightweight yet rugged co-molded materials and rated IPX7 waterproof, this rear light stands up to challenging weather without missing a beat. The versatile silicone rubber strap ensures secure mounting on both aero and round seat posts while a robust 1900 mAh battery keeps you powered longer. Convenient USB-C waterproof charging streamlines recharging (cable not included), making it easy to stay ready for every ride.