Lezyne Strip Pro Ai Alert 400+ Rear Bike Light with Brake Sensing & 270° Visibility

The Lezyne Strip Pro Ai Alert 400+ Rear light represents a significant advancement in cycling safety technology, designed to maximise your visibility and communication with other road users. This rear light incorporates innovative 'Ai Alert' brake sensing technology, which intelligently detects when you are decelerating and adjusts the light output accordingly. With a maximum brightness of 400 lumens and an extensive runtime of up to 80 hours in low-power Femto mode, it ensures you remain clearly visible during all riding conditions, whether in daylight or at night.

Engineered for versatility and reliability, the Strip Pro Ai Alert offers seven combined solid and flashing modes, including a distinctive Daytime Flash mode that enhances daytime safety by making you more noticeable to motorists and fellow cyclists. Its wide-angle optics provide a comprehensive 270-degree field of visibility, allowing for detection from multiple angles. The light is compatible with both aero and round seatposts, enhancing its adaptability across various bike designs. Additionally, its IPX7 waterproof rating guarantees dependable performance regardless of weather, making it a dependable choice for all-season cycling.

Powered by a rechargeable 1900 mAh battery via USB-C (charging cable sold separately), this light balances powerful illumination with practical convenience. Despite delivering robust performance, it maintains a lightweight profile at just 71g, ensuring minimal impact on your bike's setup. Whether commuting in urban environments or embarking on longer rides, the Strip Pro Ai Alert 400+ Rear is a prudent investment in enhancing your cycling safety and visibility.

Key Features & Benefits

• Advanced Brake Sensing Technology: 'Ai Alert' intelligently detects deceleration and automatically adjusts light output to signal braking, improving communication with traffic behind you.
• High Brightness and Extended Runtime: Up to 400 lumens of brightness with a runtime of up to 80 hours in Femto mode ensures visibility across a wide range of conditions.
• Wide-Angle Optics: Provides a 270-degree field of visibility, enhancing safety by making you visible from multiple directions.
• Multiple Lighting Modes: Includes seven solid and flash modes, such as a disruptive Daytime Flash mode designed specifically for daytime visibility.
• Robust Weather Resistance: IPX7 waterproof rating guarantees reliable operation in heavy rain and wet environments.
• Universal Mount Compatibility: Designed to fit both aero and round seatposts for versatile and secure attachment.
• Rechargeable Battery: Equipped with a 1900 mAh USB-C rechargeable battery for convenient and efficient power management.
• Lightweight Design: Weighing only 71g, it adds minimal bulk to your bike setup without compromising performance.

What It’s Good For

• Enhancing rear visibility for cyclists in urban and rural settings.
• Automatically signalling braking to improve safety in traffic.
• Providing versatile lighting options suitable for various weather and lighting conditions.
• Fitting securely on different seatpost types for broad compatibility.
• Reliable use during extended rides thanks to long battery life.

What It’s NOT Good For

• Serving as a front light, as it is specifically designed for rear visibility only.
• Users without access to USB-C charging, since the charging cable is not included.
• Those requiring an ultra-compact light, as this model balances power with moderate size and weight.
• Cyclists preferring simple on/off lights without sensor-based features.

Frequently Asked Questions

Is this light suitable for all weather conditions?
Yes, the Strip Pro Ai Alert 400+ Rear has an IPX7 waterproof rating, ensuring reliable functionality even in heavy rain and wet environments.

How does the 'Ai Alert' brake sensing technology improve safety?
This technology detects when you are slowing down and automatically switches the light to a brake signal mode, alerting vehicles and cyclists behind you to your deceleration.

Can this light fit different bike seatposts?
Yes, it is designed to fit both aero and round seatposts, providing versatile mounting options for various bike models.

What accessories complement this rear light?
To optimise your cycling safety, consider pairing this rear light with front lights, helmets, and reflective gear. Explore our front lights and helmets collections for compatible accessories.