LezyneSaddle Ai Alert 250 Rear Light
Introducing the future of cycling safety with theLezyneSaddle Ai Alert 250 Rear Light, a groundbreaking blend of artificial intelligence and advanced ALERT rear taillight technology. This innovative light automatically detects brake events and seamlessly switches to Active Alert Mode – a rapid 250-lumen flash “brake light” – to signal deceleration, effectively communicating your movements to traffic and fellow cyclists for enhanced visibility and safety.
Featuring 10 super-bright LEDs, it delivers a powerful beam pattern designed for optimal light dispersion, even in challenging conditions. Built with durable CNC-machined aluminium and wide-angle optics for 270° of visibility, the light offers seven output modes, including the attention-grabbing 250-lumen Active Alert and Day Flash modes, and an impressive 60-hour runtime in FEMTO mode.
Tested to IPX7 waterproof standards, the Saddle Ai Alert 250 Rear is engineered to perform in any weather. With a battery capacity of 1100 mAh, it’s easy to recharge – simply unscrew the light from the saddle mount to access the USB-C charging port (cable not included).
Experience next-level cycling safety with the Saddle Ai Alert 250 Rear Light, featuring advanced AI technology for unmatched visibility and peace of mind on the road.
Modes (Lumens/burn time):Economy– 10 / 20 hours;Blast– 80 / 4 hours; Flash 1 – 50 / 34 hours;Day Flash 1– 250 / 15 hours;Day Flash 2– 125 / 25 hours;Femto– 10 / 60 hours;Pulse– 50 / 8 hours; Active Alert – 250 lumens
Features
- Saddle-mounted rear light
- Advanced taillight with ‘Ai Alert’ brake sensing technology
- Detects deceleration and changes output mode correspondingly
- Fully CNC Aluminium construction
- Wide Angle Optics provide 270° of visibility
- 7 combined solid and flash output modes including a highly disruptive Daytime Flash mode
- Max Lumens: 250
- Max Runtime: 60 hours
- Battery Capacity (mAh): 1100
- Recharge Type: USB-C charging (cable not included)
- Weight: 73g
- Dimensions: 60mm, 41mm, 64mm
- Water-resistance rating: IPX7
































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