Features1Universal voltage, suitable for 3684V electric bicycles or scooters, can automatically identify the voltage. 2Universal accelerator for electric bicycles, scooters, tricycles and other electric bike. 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.SpecificationItem type:ElectricBicycleControllerMeterSetMaterial: blendColor: As picture shownWeight: Approx. 611g36/48V 250/350W universalLine color definition:1. White power supply positive2. Yellow switch output3. Brown signal sending4. Green signal reception5. Black power supply negative6.Red +5V7. Blue speed control signal8.Black GNDPackage List1 x Controller1 x Meter1 x Half throttle1 x Throttle grip1 x Clip2 x Key