The above is a video review made by Tomtop,for the Colorful Rainbow 32 LED Wheel Signal Lights for Bikes Bicycles —> http://bit.ly/N4vMST
This LED Wheel Signal Light is very easy to install, it can be fixed on cycle spoke. It consists of 32pcs colorful LEDs, which would flash 30 kinds of flower patterns and changed colors every few seconds. The pattern is clear and completely when speed up to 20 km / hour.
Being equipped with light sensor and movement sensor, the light will flash only at night and moving, it will not work and save power when not running.
Operated by 3 AAA batteries, it can work about 30 hours.
Patent Colorful Original LED Wheel Signal Lights for Cars 4 Pcs —> http://bit.ly/MrnJoD List Price:$27.76
Colorful Rainbow LED Wheel Signal Lights for Bikes bicycles —> http://bit.ly/OBTB5s List Price:$7.72