Features1Universal voltage, suitable for 3684V electric bicycles or scooters, can automatically identify the voltage. 2Used for electric bicycles, scooters, tricycles and other electric vehicles. 3By rotating the voltage value in real time, you can determine the remaining charge accurately. 4Professional manufacturing, stable performance and high reliability. 5Fine workmanship, provide good usage experience.SpecificationCondition:100%Item type:ElectricBicycleController SetMaterial: blendColor: As picture shownWeight: Approx. 497gInstallation hole diameter: Approx. 22.5mm/0.9in36/48V 250/350W universalLine color definition:1.Red power input2.Yellow power output3.Bluesignalsending4.Greensignalreception5.Black power supply negativePackage List1 x Controller1 x Meter1 x Half throttle1 x Throttle grip1 x Clip