The Lezyne KTV PRO+ Ai Alert Rear is a compact USB-C rechargeable rear bike light engineered for riders who want intelligent visibility without adding bulk to their setup. The light uses AI-trained brake detection technology to automatically increase output intensity when deceleration is sensed, alerting following traffic at the moments that matter most. Wide-angle optics cast up to 270 of visibility from a co-molded body rated to IPX7 waterproof standards, making it a capable rear bike light for road, commute, and mixed-condition riding. A rubber O-ring mounting system secures the light to round, D-shape, and aero seat posts without tools. The 400 mAh battery charges via a water-resistant USB-C port and supports a maximum runtime of 28 hours, and the battery is user-replaceable.USB-C cable not included.AI-trained brake detection technology automatically signals deceleration to following trafficWide-angle optics cast up to 270 of visibility from a single compact unitCo-molded construction is rigorously tested to IPX7 waterproof standardsRubber O-ring mount fits round, D-shape, and aero seat post profiles without tools400 mAh battery charges via a water-resistant USB-C portMaximum runtime of 28 hours at the light's lowest output settingUser-replaceable battery designItem SpecificationsBatteryUSBLumens Rear150Recharge TypeUSBWeight32.6 Lezyne KTV Pro Plus AI Alert Taillight Taillight EAN: 4710582541247 MPN: 1-LED-35R-V404