Pesp Cdycam 128 RGB LED Bicycle Spokes Lights Color Changing Programmable Waterproof Bicycle Light Spoke Wheel Light Bike Light Lamp It consists of 128 high visibility RGB LED lights. It can better show full graphics when you riding in 15 km per hours. Built in vibration sensor, it turn on the light while riding, and it turn off the light when you stop riding . With waterproof design , you dont need to worry about riding in rainy. You can download pictures from the internet and design your pictures with the USB cable.