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CL05 is a lightweight and easy-to-use rear light. Featuring two COB LED rings and built-in light sensor, it provides max 30 LED lumens on warning flashing mode, great for busy night street commuting or city riding. With the flexible rubber strap mount and mounting clip, the light could be mounted to round and aero seatpost or clipped to some compatible saddle bags or backpacks directly.

Two highly efficient COB LED rings and various modes

By laying out the COB LED in two rings, CL05 provides a larger lighting area and creates more significant visibility for riders. Two COB LED rings also help to create more different combinations of flashing modes for various needs

Built-in light sensor

When detecting headlights(>50lux) from rear approaching vehicles, the light sensor will activate the eyecatching warning flashing mode with max 30 lumens to boost the rider's visibility to maximum

Easy-to-use mounting clip

Slide the light in or out from the mount easily; It can also be clipped to some compatible saddle bags (1.2-1.5cm mounting strap recommended) or backpacks directly

Flexible rubber strap mount

Integrated one-piece design with great compatibility for both round and aero seatpost. It can be also mounted to certain helmets

USB-C charging port

Reversible connector to charge the light easily and no need to flip around looking for the correct orientation

Product Features

1. Highly efficient COB LED with max 30 LED lumens

2. Built-in light sensor to activate max output for warning when detecting headlights from rear approaching vehicles

3. Auto power save and indicator for low battery

4. Quick release design for various mounting ways

5. USB-C charging port for convenient use

6. Built-in mode memory function

7. IPX6 water-resistance for heavy rain

Tech Specifications


Battery: 200mAh/3.7V rechargeable Li-polymer battery

Dimensions (light unit): 42.5mm(L)*23.5mm(W)*43.5mm(H)

Weight (light unit): 23g

Mount size: compatible with φ 24-36mm round seatpost and aero seatpost

Design and specifications are subject to change without notice

Customer Reviews

Based on 9 reviews
davide cordella


Wayne Orange

Rear light won’t go round my seat post

Benedikt Strobel


Coleman Sullivan
Sorry, I can’t recommend this light

The light itself is fine as long as it lasts, but the battery life is ridiculous. I didn’t actually order a tail light, it came with the front light which is a great addition. I went back to my old light.

Thomas Schumacher
Gut gekommen und praktisch

Bin zufrieden , es war klar, dass die Frontleuchte kein echter Scheinwerfer ist.
Reicht für mich aber zum Heimfahren in der Dämmerung. und ist schick und leicht