ITEM NAME:1set Solar Energy LED Car Auto Bike Flash Wheel Tire Valve Cap Light Lamp 13 Hot Descriptio n Description: Descriptions: Easy to install and remove 13 lighting modes available Small, light weight, durable and waterproof.Auto start flashing when the car is in motion when car speed up to 25km/h at night. Auto stop flashing when the car is not in motion or when car speed below 25km/h at night. High brightness LED light can avoid accidents when driving at night.