Features:
Adopts premium light beads, bright with long service life. 4 modes can meet your different needs.
Excellent waterproof processing that ensures the safety of battery compartment, switch is sensitive and waterproof.
With built-in battery, and supports USB charging, very convenient to use and energy-saving.
Make your bike highly visible so that it can guarantee your cycling safety.
With one quick release mount, easy to install on bike seatpost.

Specifications:
Material: Plastic
Color: Shown as picture
Options (Light Color): Red; White
Light Bead: COB
Luminous Flux: 50lm
Mode: steady / slow flash / super flash / cycle flash
Power Supply: Rechargeable 3.7V 330mAh Battery (built-in)
Charging Time: 2hrs
Working Time: 12hrs
Waterproof: Rainproof
Size: Approx. 7 x 2 x 1.7cm / 2.75 x 0.78 x 0.67inch
Weight: Approx. 52-53g

Packing List:
1 x Bike Warning Light
1 x USB Cable
1 x Mount