Feature:1. High‑quality materials, professional manufacturing, stable performance, high reliability.2. Engine has strong climbing ability, low engine running noise, and eliminates tire noise.3. Thickness of the shell increases, and the heat dissipation is better. Suitable for electric bicycles and electric scooters.4. Made of aluminum alloy material, with strong toughness, sturdy, durable and long service life.5. Engine starts more smoothly, the ride is more comfortable, and the driving process is stable.How to Use:Each interface has a function description, and the function can be realized by connecting the socket according to your own needs.Specification:Item 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-speed 7. 1 Electric Door Lock8. 1 One-line Lcd Instrument 9. 1 Speed Up to Turn 10. 1 Hall Wire11. 1 Low-level Brake12. 1 High-level Brake13. 1 Reverse Gear14. 1 Smart Learning Line15. 1 Cruise Control 16. 1 Jog Three-speed, Four-speed Package List:1 x Motor Controller