Motor brushless controller for Electric bicycle & scooter. Rated voltage: dc 48 v. Matching motor: dc brushless motor Under Voltage Protection: 20V. Battery :Thick Black (Power Negative) /Thick Red (Power Positive). Motor :Thick Yellow (Motor Negative) /Thick Blue (Motor Positive). Ignition Switch :Thin Red(VCC)/Thin Blue. Indicator : Thin red (Indicator power output) /thin black (indicator negative). Brake :thin yellow (Brake signal)/thin black(Negative Power). Speed governor :Thin blue(Speed handlebar Signal input) /Thin black (Negtive Power) /thin red(5V Positive Power). Charge Port : Thin red (charge input power Positive) /thin black (Power negative). Brake Light: Thin red (power Positive) /thin black (Power negative). Speed display, gear display, power indicator,, total mileage, single mileage. Cable length:1.8m. 1 X Speed controller+1x Display.