Lezyne KTV Pro+ Ai Alert Rear Light - 1-LED-35R-V404
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Product Information
Full details
The Lezyne KTV Pro+ AI Alert Rear Light is an ideal choice for urban commuters and road cyclists seeking enhanced safety through intelligent braking awareness. Its primary benefit is the AI-trained brake alert system that automatically signals your deceleration to following traffic, though users should note that the light requires a specific mounting orientation to ensure the accelerometer functions correctly.
All features
| Model Part Number | 1-LED-35R-V404 |
|---|---|
| Brand | Lezyne |
Extended Product Information
FAQs
How long does the battery last on a single charge?
The light provides up to 28 hours of runtime depending on the selected mode.
Can I use this light in the rain?
Yes, the device features an IPX7 waterproof rating, making it suitable for heavy rain.
Does the light remember my last mode?
Yes, the light typically features memory mode functionality to start in your previously used setting.
What is the weight of the unit?
The light weighs approximately 32.6 grams.
Is the battery replaceable?
Yes, the 400mAh battery is user-replaceable for long-term product maintenance.
How do I know when the light is charging?
The light usually displays a charge indicator light near the USB-C port while connected.
Troubleshooting
Brake alert function is not triggering correctly
Ensure the light is mounted vertically on the seat post; if tilted significantly, the accelerometer may not calibrate to your deceleration correctly.
Light does not charge when plugged into a power source
Verify that the USB-C cable is fully inserted and the port is free of debris. Use a certified 5V power adapter.
Mounting strap feels loose on narrow seat posts
Double-loop the rubber O-ring around the mounting hook to increase tension and prevent rotation.
Pros and Cons
Pros
- Integrated AI-powered brake alert increases rider safety
- Extremely lightweight and compact design
- Wide-angle visibility coverage
- Durable IPX7 waterproof rating
- Long battery life reaching up to 28 hours
Cons
- Requires specific seat post angle for sensor accuracy
- Compact size limits maximum raw lumen output compared to larger models
- Mounting system relies on rubber O-rings which can degrade over time
Setup, Compatibility & Care
The KTV Pro+ utilizes a versatile rubber O-ring mounting system designed to fit most standard seat posts. To set it up, simply stretch the O-ring around the seat post and hook it securely onto the rear clip of the light. For optimal AI brake sensor performance, ensure the light is mounted as vertically as possible on the seat post. For care, wipe the unit down with a damp cloth after rides in muddy or wet conditions. Ensure the USB-C port cover is fully pressed into place before exposing the device to moisture to maintain the IPX7 waterproof integrity. If the battery performance drops after heavy, multi-year use, it can be replaced by the user to restore full factory runtime.