Product parameters: Color:Blue Condition: 100% brand newItem type: Motor Controller Material: Aluminium alloy Voltage: 48V-60V-64V-72V-84V Weight: .1738g Power: 3000W-4000W Current limit:50A-80A Controller type: square wave controller 24-Tube Dual Mode controller Function: 1. Power supply 2. motor phase line 3. Fixed speed regulator 4. Three-speed gear 5. Hall speed measurement 6. Phase line speed measurement 7. One-line meter 8. Throttle 9. Hall sensor 10. Anti-theft signal 11. Anti-theft power supply 12. Key switch 13. High level brake 14. Low level brake 15. Reverse 16. Intelligent learning Installation Instructions Step 1. Connect wires 1, 2, 8, 9, 12. Step 2. Connect the No. 16 wire with the motor suspended. (Note: the motor needs to be in the overhang position for docking wire #16) Step 3. The motor will perform a forward/reverse state. (If there is a reversal you will need to disconnect the 16 wire and reconnect it) Wait 10 seconds in the forward state to complete learning. Step 4. Make the wiring connections according to the vehicle. Function: 1. Increased withstand voltage and increased adaptable voltage:48V, 60V, 64V,72V, 84V,universal 2. One-line instrumentation adds more adaptability, about 80%. 3. In terms of hardware: thicker aluminum shell, better heat dissipation. The motherboard ,solution is better. Power tubes, capacitors, copper bars, etc. are better. 4.Suitable Motor Phrase Angle: Auto recognition. 5.Suitable for:Electric motorcycles,Small tricycle,Two-wheeler etc 6.Package List: 1 x Brushless Controller