The Lezyne Strip Pro Ai Alert 400+ Rear Light represents the next generation in cycling safety, combining a premium 10-LED taillight with advanced Ai Alert brake-sensing technology. This intelligent light automatically detects deceleration and switches its output to Active Alert mode — a rapid 150-lumen flash that functions as a brake light — effectively communicating your actions to traffic and fellow cyclists behind you. With a maximum output of 400 lumens and an impressive 80-hour runtime in Femto mode, it is built for every ride from dawn commutes to long-distance adventures.
- Advanced Ai Alert technology automatically detects braking and activates a rapid 150-lumen Active Alert brake-light flash.
- 10 super-bright LEDs with a beam pattern optimised for maximum light dispersion in all conditions.
- Maximum output of 400 lumens; up to 80 hours of runtime in Femto mode.
- Seven combined solid and flash output modes, including a highly disruptive Daytime Flash mode.
- Wide Angle Optics provide 270° of visibility for enhanced all-round safety.
- Rigorously tested to IPX7 waterproofing standards; lightweight co-molded construction.
- 1900mAh battery charges via waterproof USB-C port (cable not included). Weight: 71g.

