Feature:1. The shell is made of aluminum alloy, with a rut design, and heat dissipation characteristics can protect the internal circuit and avoid thermal overload2. The wire and interface have durable characteristics, which can ensure long time use and low failure rate3. There is an instruction label on the interface for easy installation. Suitable for electric bicycles, scooters, etc4. The 12 tube controller is suitable for conventional two wheeled electric vehicles, small electric tricycles, etc5. The greater the number of tubes, the greater the output current, and the greater the torsion of the drive motor. At the same time, the greater the power and the better the powerSpecification:Item Type:Brushless Motor ControllerProduct Material: Aluminum AlloyProduct Size: Approx. 15 x 8.5 x 4cm / 5.9 x 3.3 x 1.6in (manual measurement, allow 1-2cm/0.4in-0.8in error)Current: 26-33A, 28A-32AVoltage: 50V-72V, 50V-64VThe 12 Tube Controller is Suitable For: Conventional Two wheeled Electric Vehicles, Small Electric Tricycles, Etc.1. 2 x Power Supply Positive and Negative Poles2. 1 x Electric Door Lock3. 3 x Motor4. 1 x Conventional Meter5. 1 x Anti theft Alarm Signal6. 1 x Fixed Speed Fast Sailing7. 1 x High level Brake8. 1 x Anti theft Alarm Power9. 1 x Low level Brake10. 1 x Speed Control Handlle11. 1 x Three speed Gear12. 1 x Muitiple Data Meter13. 1 x Intelligent Recognition14. 1 x Special for Differential Motor (optional)15. 1 x Electric three Speed, Four Speed16. 1 x Reverse Gear17. 1 x Hall Sensor Package List:1 x Brushless Motor ControllerNote:Manual Measurement, Allow 1‑2cm/0.4in‑0.8in ErrorEach Interface Has a Function Description, and the Function Can Be Realized by Connecting the Socket According to Your Own Needs