Smart Millimetre Wave Bicycle Tail Light with Dual Bracket, 1500mAh USB-C Rechargeable Battery, IP64 Waterproof Rating for Mountain and Highway Road Cycling Safety Warning
Smart Millimetre Wave Bicycle Tail Light with Radar Alert, USB-C Charging, and IP64 Rating

Designed for the safety-conscious cyclist tackling mountain passes or navigating high-speed highway shoulders, this smart tail light integrates millimetre wave radar technology to provide an advanced warning system. Its core purpose is to increase your visibility to following traffic while offering an active detection mode for approaching vehicles. The built-in 1500mAh battery, charged via a contemporary USB-C port, delivers dependable power for long rides. With a compact form factor and an IP64 waterproof construction, this light is built to be a resilient and practical addition to any road or mountain bike, focusing on function and rider security above all.
Features and Construction

This light is defined by its dual-operation system and robust physical build. It separates its functions between standard visibility lighting and an advanced radar-based alert mode, all housed in a small, water-resistant casing.
Material and Build
The light's enclosure is engineered for outdoor use, featuring a sealed design that achieves an IP64 waterproof rating. This rating confirms protection against water spray from any direction, making it suitable for riding in light rain or wet road conditions. The construction prioritises housing the radar sensor, LED array, and 1500mAh lithium battery securely, using materials typical for durable electronic housings to withstand vibration and minor impacts encountered during cycling.
Size and Practical Fit
Measuring 59.0 mm by 39.5 mm by 28.5 mm, the light maintains a low-profile silhouette that doesn't add bulk to your bike's rear end. The included dual bracket provides versatile mounting options, allowing you to attach it firmly to a seat post or other round tubing. This compact size and secure mounting solution ensure the light stays in place and remains highly visible without interfering with your ride or baggage.
Uses and Placement

The product's functionality caters to different cycling scenarios, from routine commutes to demanding off-road adventures. Its mode selection allows riders to adapt their visibility strategy based on environment and risk.
Event or Professional Use
For competitive cycling, group rides, or cycling in high-traffic areas like highways, the radar mode activated by the S2 key becomes particularly valuable. This mode uses millimetre wave technology to detect vehicles approaching from behind and triggers an "extremely bright, rapid breathing, flash" sequence. This provides an active warning to the rider and enhances the light's visibility to drivers, adding a layer of safety during fast-paced or congested riding.
Everyday Home Use
For daily commuting, fitness riding, or casual cycling in urban or park settings, the standard modes accessed via the S1 key are sufficient. These include a constant-on light for steady visibility, along with breathing flash, quick flash, slow flash, and alarm flash patterns. These patterns help attract attention in various light conditions, making the rider more conspicuous to other road users during evening rides or in low-light situations.
Benefits and Buying Value

The value of this tail light lies in its combination of proactive safety technology, practical durability, and user-friendly operation. It addresses the fundamental need for visibility while adding a technological advantage for higher-risk environments.
Reuse and Low Maintenance
The USB-C rechargeable battery eliminates the need for disposable batteries, offering long-term cost savings and convenience. The IP64 waterproof rating and sturdy construction suggest the light will require minimal maintenance beyond regular charging and lens cleaning, contributing to its longevity and reliable performance over many riding seasons.
Why Choose This Product
Choosing this light means selecting a product that goes beyond basic illumination. The integration of a radar detection system provides a tangible safety benefit not found in standard tail lights. When combined with its high-capacity rechargeable battery, multiple flash modes, and weather-resistant build, it represents a comprehensive safety solution for cyclists who prioritise being seen and receiving alerts about potential hazards from behind.
