Discover the future of bike light technology - Ai Alert, integrated into the Lezyne Strip Pro Ai Alert 400+ REAR. With the combination of artificial intelligence and advanced alert technology, you have the most precise brake light on the market. The light automatically detects braking and switches to Active Alert mode - a powerful 150-lumen flash that signals your deceleration and alerts traffic and other cyclists. This increases your visibility and safety. The Strip Pro Ai Alert 400+ Rear is not just a rear light, but an innovation. With 10 super-bright LEDs, it ensures optimum illumination, even in bad weather. The robust, lightweight co-moulded construction with wide-angle optics offers 270° visibility and a total of 7 modes - from a powerful 400 lumens in Day Flash mode to an impressive 80 hours of runtime in energy-saving Femto mode. Thanks to the flexible silicone fastening strap, you can easily attach it to aerodynamic or round seat posts. Tested to IPX7 standard, the rear light can withstand even the harshest weather conditions. With a 1900 mAh battery and waterproof USB-C connection (cable not included), you are always safe on the road.