Features130Pcs Full Color Patterns: 30Pcs full color patterns are used, which change every four seconds, which will automatically light up when the night ride shakes, and will automatically turn off when the car stops. 2Photosensitive Vibration Dual Switch: Composed of 7pcs full color SMD LEDs on both sides, equipped with photosensitive vibration dual switch. 3Waterproof: The metal battery cover is sealed with a rubber ring to ensure the battery compartment is sealed and can be effectively waterproof. 4Convenient Installation: LED bike wheel light is easy and simple to install. It is directly fixed on the steel wire with two plastic nuts. 5Battery Power Supply: LED bike wheel light battery power supply, using an AAA battery, can guarantee continuous use for 12 hours.SpecificationItem Type: LED Bike Wheel LightMaterial: ABSBattery Type: 1 x AAA battery (not included)Package List1 xLED Bike Wheel Light