Features1Highquality materials, professional manufacturing, stable performance, high reliability. 2Engine has strong climbing ability, low engine running noise, and eliminates tire noise. 3Thickness of the shell increases, and the heat dissipation is better. Suitable for electric bicycles and electric scooters. 4Made of aluminum alloy material, with strong toughness, sturdy, durable and long service life. 5Engine starts more smoothly, the ride is more comfortable, and the driving process is stable.SpecificationItem Type: Motor ControllerMaterial: Aluminum AlloyController Box Size: Approx. 12.5x8.5x4.5cm/4.9x3.3x1.8inCurrent: 20A-25AConnector Function:1. 3 Motor Phase Wires2. 2 Power Cords3. 1 Anti-theft Alarm4. 1 Anti-theft Alarm Signal5. 1 Ordinary LCD Instrument6. 1 Dial Gear Three-speed7. 1 Electric Door Lock8. 1 One-line Lcd Instrument9. 1 Speed Up to Turn10. 1 Hall Wire11. 1 Low-level Brake12. 1 High-level Brake13. 1 Reverse Gear14. 1 Smart Learning Line15. 1Cruise Control16. 1 Jog Three-speed, Four-speedPackage List1 x MotorController