The Lezyne KTV Pro+ AI Alert Rear Light is a compact 150-lumen rear bike light with AI-trained brake detection. It can detect braking and alert other road users when you slow down. Wide Angle Optics provide up to 270° of visibility, while six light modes give you options for day and night riding. The secure rubber mount fits most seat post shapes, and the light weighs just 32.6g.Key Features and Benefits:AI-Trained Brake Detection: Advanced AI-trained technology detects braking and activates the alert function when you slow down. This creates a clear change in the rear light output without the need for a wired brake sensor. It helps other road users recognise a change in your speed sooner.150-Lumen Maximum Output: The light reaches up to 150 lumens for strong rear visibility. Its six available modes include two solid modes and four flash modes, so you can adjust the output to suit different rides. Day Flash provides the full 150-lumen output with up to 22 hours of runtime.Wide Angle Optics: The lens provides up to 270° of visibility rather than directing all light straight behind the bike. This makes the light easier to see from wider angles and helps improve your presence to traffic approaching from the rear or side.Up to 28 Hours of Runtime: The built-in 400mAh battery supports runtimes of up to 28 hours, depending on the selected mode. Blast provides 50 lumens for up to 2 hours, Economy provides 10 lumens for up to 9 hours, and Femto provides 5 lumens for up to 28 hours. This gives you control over brightness and battery use.USB-C Rechargeable Design: The light uses USB-C charging for a simple and widely used charging connection. Its charging port is designed to resist water when exposed to wet riding conditions. A charging cable is not included, so you can use a suitable existing USB-C cable.IPX7 Waterproofing: The KTV Pro+ AI Alert has been rigorously tested to IPX7 waterproofing standards. Its co-moulded body helps form a durable outer structure around the light. This makes it better suited to regular riding in rain, spray and changing weather.Secure Multi-Shape Seat Post Mount: A lightweight rubber O-ring mounting system holds the light firmly in place without adding a bulky bracket. It is compatible with most round, D-shaped and aero seat posts. This makes it easier to move the light between different bikes or remove it for charging.User-Replaceable Battery Design: The 400mAh battery is designed to be user replaceable in line with EU Batteries Regulation (2023/1542). This allows the battery to be replaced instead of treating the complete light as disposable when battery performance falls over time. It supports longer-term use of the light.The KTV Pro+ AI Alert is designed to make changes in your speed clearer to people behind you. Its AI brake detection adds an extra signal when you slow down, while the wide lens helps maintain visibility across a broad angle. The compact 39.9mm x 25.2mm x 55mm body and 32.6g weight also keep the setup small and easy to fit to a wide range of bikes.For riders who want a compact rear light with automatic brake alerts, long runtime and flexible mounting, the Lezyne KTV Pro+ AI Alert provides a practical option for regular road use.