Products Detail:
LED:32led
Material:ABS
Function:42 patterns
Battery:3XAAA
Function:movement sensor and switch control
Size:150*95*20mm
Features:
1)Install easy,no need any tools!
2)IP 65, you can use it in rainy day!
3)42 patterns automatic change every 3 seconds.
Fix the light on the spoke, power on the switch.
The light will flash automatically when you are cycling in dark,then flash off when you stop.