Bicycle running water taillight with waterfall effect for night riding, available in four colours: yellow, red, green, and blue waterfall lights, featuring COB LED beads and a 300mAh battery charged via Type-C port.
Bicycle Running Water Taillight for Enhanced Night Riding Visibility with Waterfall Effect

This bicycle taillight provides a practical safety upgrade for cyclists riding in low-light conditions, featuring a distinctive running water or waterfall lighting effect. Unlike standard steady or flashing lights, this animated pattern helps distinguish your bicycle from other vehicle lights, potentially improving recognition by following drivers. The taillight incorporates COB LED technology within an ABS plastic housing, creating a bright, energy-efficient illumination source that weighs just 24g. With a 300mAh battery recharged via a modern Type-C port, it balances capacity with convenient charging, completing a full charge in approximately 40 minutes under normal conditions.
Features and Construction

The taillight's primary function is to increase cyclist visibility through its unique light pattern and robust construction suitable for various riding environments.
Material and Build
The outer shell is manufactured from ABS plastic, a material chosen for its impact resistance and relatively low weight. This housing protects the internal COB LED beads, which generate the waterfall lighting effect. The combination results in a product weight of 24g, minimising added mass on your bicycle's rear frame or seat post. The construction is designed to function reliably across a specified temperature range from -30°C to 65°C, making it suitable for use in both cold winter and warm summer conditions, provided humidity remains below 80%.
Size and Practical Fit
While specific physical dimensions are not provided in the source data, the known 24g weight indicates a compact, lightweight unit that should not significantly affect bicycle handling. The design likely includes a standard mounting bracket for attachment to seat posts or rear luggage racks, a common fitting for taillights. Its operational temperature and humidity tolerances suggest it is built for the variable conditions encountered during outdoor cycling, from chilly early mornings to humid summer evenings.
Uses and Placement

This taillight serves a clear safety function for urban, commuter, and recreational cycling, where being seen is crucial.
Event or Professional Use
For group rides, charity cycles, or commuting in traffic, the moving waterfall light pattern offers an advantage over static lights by creating a more noticeable and memorable visual signal. The wide operating temperature range (-30°C to 65°C) means it remains functional during organised events held in diverse weather, from cold starts to midday heat. The Type-C charging offers compatibility with common power banks and chargers used by cyclists on longer trips or multi-day events.
Everyday Home Use
For daily commuting or evening leisure rides, the taillight provides a consistent safety feature. The 300mAh battery capacity suggests it can support multiple shorter rides between charges, with the exact runtime dependent on the selected light mode's power draw. Storing the light when not in use is viable in environments from -40°C to 75°C, meaning it can be left in a garage, shed, or car boot without concern for temperature damage under normal circumstances.
Benefits and Buying Value

The value of this product lies in its specific light technology, practical build, and the safety benefit it provides to the cyclist.
Reuse and Low Maintenance
The product is designed for repeated use, with a rechargeable 300mAh battery eliminating the need for disposable cells. The Type-C charging port is now a widely adopted standard, increasing the likelihood you already own compatible cables, reducing clutter and the need for specific accessories. The ABS plastic shell should withstand typical handling and exposure, while the stated environmental tolerances indicate a design intended for regular outdoor use without delicate maintenance requirements.
Why Choose This Product
This taillight offers a distinct visual signature through its waterfall light effect, which may improve your visibility profile compared to conventional lights. The combination of COB LEDs for brightness, a lightweight 24g build, and Type-C charging addresses key practical considerations for modern cyclists. It provides a defined set of features—specific light pattern, battery capacity, charging method, and environmental ratings—that allow you to assess its suitability for your typical riding conditions and habits.

