Introducing the Saddle Ai Alert 250 Rear the future of bike light technology. This premium saddle-mounted rear light combines advanced Ai Alert technology with 10 super-bright LEDs to provide optimal light dispersion. The light automatically detects brake events and switches to a rapid 250-lumen flash mode enhancing rider visibility and safety. With a fully CNC-machined aluminum construction wide angle optics for 270deg visibility and 7 output modes it offers up to 60 hours of runtime. Rigorously tested to IPX7 waterproof standards it features an 1100 mAh battery and USB-C charging (cable not included). Experience next-gen bicycle light safety with the Saddle Ai Alert 250 Rear.Ai Alert brake-sensing technology detects deceleration and changes output mode to alert othersSaddle-mounted rear light with up to 250 lumens and 60-hour runtime7 solid and flash output modes including Day Flash modeCNC machined aluminum IPX7 waterproof and 270deg visibilityUSB-C charging (cable not included) with 1100 mAh battery capacity