May be fixed upon the brake cable housing and connected to the brake lever ()Small & light, smooth & highly stable because of axle device -- mobile & nimble ()Can be fitted for the most type of Bikes

Can be easily connected to plural input terminals and plural output terminals simultaneously. ()High motivate. ()For Versatile DC Power from 3V to 24V ()Easy to install () () () () ()

Multi-range power voltage: 3V to 24V for DC to DC ()Easy to install () () () () () () ()

Newest invention patent using the light-emitting bar concept ()many intention patents around the world ()Multi-function (7) ()Multi-applications: for bikes and more ()Power saving, energy saving -- o