Features 1、The shell is made of aluminum alloy, with a rut design, and heat dissipation characteristics can protect the internal circuit and avoid thermal overload 2、There is an instruction label on the interface for easy installation. Suitable for electric bicycles, scooters, etc 3、The wire and interface are durable, ensuring low failure rate in long-term use. You can use it with confidence 4、The 12 tube controller is suitable for: conventional two wheeled electric vehicles, small electric tricycles, etc., which can easily meet your daily needs 5、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 power Specification Item Type: Brushless Motor Controller Product Material: Aluminum Alloy Product 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: 26A-32A Voltage: 50V-72V The 12 Tube Controller is Suitable For: Conventional Two wheeled Electric Vehicles, Small Electric Tricycles, Etc. 1. 2 x Power Supply Positive and Negative Poles 2. 1 x Electric Door Lock 3. 3 x Motor 4. 1 x Three Speed Gear 5. 1 x Intelligent Identification 6. 1 x Low level Brake 7. 2 x Anti theft Alarm Power 8. 1 x Muitiple Data Meter 9. 1 x Speed Control Handlle 10. 1 x High Level Brake 11. 1 x Reverse Gear 12. 1 x Fixed Speed Fast Sailing 13. 1 x Conventional Meter 14. 1 x Hall Sensor 15. Mid Motor Conversion 16. Electric acceleration Package List 1 x Brushless Motor Controller