. Made of TPE environment friendly material. .
. 16pcs four color led.
. Flash programed pattern and words or simple picture with size bellow 128*16pixl by PC with the software in CD we supplied , total 30 pictures or words can be saved in light in one time and flash in night one by . Specail fixed position function can ensure the flash pattern or words showed in a certain place no swing while easy to identify.
. Work with 3.7V 500MA Li battery recharged by car charger 12-24V or USB of PC , it need 1-1.5hours to fulled recharged, red light is on when being recharged and turn to green one when charged in full and in this situation light can flash 20hours continuously .
. Assembled with light and vibration sensor , so light work only in night and wheel's running and no flash in daylight and parking time .
. No power button design for light fully rain proof.
. Quick installed on hub of wheel by screws and spring iron clip ; Size of light is 21*6*2.3CM/ PC and weight 400g/ set