Description
Product Overview
The Junchi bike tail light combines a compact rubber frame with a high‑efficiency LED array to produce 50 lumens of bright, wide‑angle illumination. Constructed from durable rubber and sealed to IPX5 standards, it resists water spray and light rain, making it suitable for all weather conditions. The unit measures 3.74″ L × 1.1″ W × 0.91″ H and weighs only 43.5 g, providing a lightweight yet robust solution for rear‑bike visibility. Powered by a built‑in rechargeable battery, it offers six lighting modes—including steady, flashing, and a laser‑assist option—controlled via a simple button interface.
Usage
Designed for daily commuters, road cyclists, and off‑road enthusiasts, this tail light excels in urban traffic, suburban streets, and trail riding. Its waterproof construction ensures reliable performance during rainy commutes, while the adjustable rubber mount fits a wide range of frame styles, from road bikes to mountain bikes. Ideal for evening rides, night training sessions, and low‑light conditions, the light enhances safety by making you visible to motorists and fellow riders.

Why Choose Us
Junchi prioritizes durability and rider safety. Each unit undergoes rigorous testing for water resistance, impact durability, and battery longevity. The USB‑rechargeable system eliminates the need for disposable batteries, offering an eco‑friendly and cost‑effective power solution. Our adjustable four‑hole rubber firmware ensures a secure fit on virtually any bike frame, reducing wobble and maintaining consistent light output.
Key Features
- 50 lumens of bright, 360° wide‑angle illumination for maximum rear visibility.
- IPX5 waterproof rating protects against rain and splashes.
- Six lighting modes, including steady, flashing, and laser assist.
- USB‑rechargeable battery provides long runtime and eliminates disposable cells.
- Adjustable four‑hole rubber mount fits most bike frames securely.
FAQ
How long does the battery last on a full charge?
The built‑in battery provides up to 8 hours of continuous use on the steady mode, with shorter runtimes on higher‑intensity flashing modes.
Is the tail light compatible with all bike frame sizes?
Yes, the adjustable four‑hole rubber mount is designed to fit a wide range of frame diameters, from road bikes to mountain bikes.
Can I use the light in heavy rain?
The IPX5 rating ensures reliable operation in rain and splashes, though it is not intended for submersion in water.
How do I switch between lighting modes?
Press the button on the side of the unit to cycle through the six available modes. A short press turns the light on or off.
What is the warranty period?
Junchi offers a one‑year limited warranty covering manufacturing defects and material failures.











































































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