Lezyne KTV Pro+ Ai Alert Rear Light
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Lezyne KTV Pro+ Ai Alert Rear Light
Lezyne KTV Pro+ Ai Alert Rear Light Info
The Lezyne KTV Pro+ Ai Alert Rear Light does something most rear lights don't — it reacts to how you're riding. Built-in Ai Alert brake-sensing technology detects deceleration and automatically switches to an Active Alert mode, triggering a rapid 150-lumen flash to signal to traffic behind you that you're slowing down. It's a meaningful step beyond a light that simply blinks on a fixed pattern.
Six output modes give you control over visibility and runtime — from a highly disruptive Day Flash mode for high-traffic riding to Femto mode, which stretches battery life to 20 hours for long days in the saddle. Wide Angle Optics deliver 270 degrees of coverage, so you're visible from the side as well as from behind. The co-molded construction carries an IPX7 waterproof rating, the silicone strap fits both aero and round seatposts, and an integrated USB stick means you can recharge without hunting for a cable.
Lezyne KTV Pro+ Ai Alert Specs at a Glance
- Peak output: 150 lumens (Active Alert mode)
- Runtime: Up to 20 hours (Femto mode)
- Output modes: 6, including Day Flash and Ai Alert brake-sensing
- Beam coverage: 270 degrees via Wide Angle Optics
- Waterproof rating: IPX7
- Charging: Integrated USB stick, no cable required
