Programmable LED bicycle Light

Programmable by yourself for one message, 4kinds different patterns the light is Set on the bicyclespoke ,it will be on when the wheel runs ,and flash when you are driving at night ,it will bring more color to your bicycle . 4kinds ofdifferent patternsflash when cycle. Fits on any Bicycle,or the standard size air valve stem of any wheel Motion activated, turns on automatically when you drive at night. Turn off automatically when your wheels stop turning Extra Batteries included and Batteries replaceable Different light colors available: red, blue, yellow, green Compact design and light weight High intensity light increases visibility at night for safety Makes impressive effects which vary with wheel speed -- all the way up to full motion circle Water resistanceCopper material Specification: 1). Item Size: 108*49*18mm; 2).7pcs LED light: red or blue; 3). Accesssories: 2*CR2032 battery; 4pcs sponge sheet. 4). Race speed should get 10-15km/hour. 5). Fixed on cycle spoke with screw 6). Waterproof 7). 6 different kinds of pattern and 1 programmable 18 English characters messages 8). Customized message should charge extra