FAMKIT LED Bike Wheel Light 7 Color USB Rechargeable Bike Wheel Hub Light for Bike Child Bike

Features: 1. This wheel light can be easily mounted around bike hub without influencing gravity center of your bike 2. Lights the entire wheel and stays on even the wheel is not turning 3. Consists of 12pcs RGB LEDs and has 33 light color changing mode 4. Light sensor and vibration sensor built-in, turns on only at dark and action. 5. Life waterproof and fits for bike, child bike and electric balancing scooter with wheel hub diameter less than 30mm. Warm Tips: 1. After power-on, the light will automatically turn off if no vibration detected within 5s. 2. During use, it will automatically go out if no vibration is detected for about 35-40 seconds, and automatically turn on if vibration detected. Specification: Item Name: LED Wheel Light Light Source: 12pcs RGB LED Battery Capacity: 300mAh Lithium Battery Working Time: 8-12h Material: Plastic Color: As Shown Light Color: 7-Color Inner Diameter: 30mm Outer Diameter: 82mm Thickness: 16mm Fit Bike Hubs Diameter: Less than 3cm Note: Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting.