Meter display content: Single running mileage and running time, real time speed, battery power and voltage, gear indication cumulative average speed, total mileage, cumulative maximum speed, cruising indication, 6km/h boost and indication, real time running power, real time running current. Applicability: Easy to install, suitable for electric bike and scooter, fits 22.5mm diameter handlebars. Heat dissipation: Controller shell is made of metal with groove design to protect internal circuit and avoid thermal overload. Controller harness includes: Power supply positive and negative, motor three phase line, headlight interface, tail light, brake light interface, brake light headlight signal, battery power output, intelligent identification line, low brake power off, PAS1:1 power assist, speed control throttle turner, total electric door (electric lock), LCD meter interface, motor hall interface. Performance: Light weight, rainproof and durable. Stable performance with increased voltage tolerance and adaptation.