Convenient light sensing function,the light will automatically turn on/off according to the surrounding environment.
Bright led will automatically turn on while the vehicle is moving and off when stop.
Powered by 3pcs LR1130 batteries.
Waterproof housing will not worry about rainy days.
Fits most Schrader valve of bikes.
Features: Convenient light sensing function,the light will automatically turn on/off according to the surrounding environment. Bright led will automatically turn on while the vehicle is moving and off when stop. Powered by 3pcs LR1130 batteries. Waterproof housing will not worry about rainy days. Fits most Schrader valve of bikes. No tools needed,easy to install and remove. Specification: LED color: Red / Blue / Green / Multi-color (optional) Power by: 3* LR1130(included) Size: 1.7 * 1.7 * 6 cm / 0.7 * 0.7 * 2.4 in Package weight: approx. 23.7 g / 0.8 oz Package List: 2* Light