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: 26 33A, 28A 32A Voltage: 50V 72V, 50V 64V 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 Conventional Meter 5. 1 x Anti theft Alarm Signal 6. 1 x Fixed Speed Fast Sailing 7. 1 x High level Brake 8. 1 x Anti theft Alarm Power 9. 1 x Low level Brake 10. 1 x Speed Control Handlle 11. 1 x Three speed Gear 12. 1 x Muitiple Data Meter 13. 1 x Intelligent Recognition 14. 1 x Special for Differential Motor (optional) 15. 1 x Electric three Speed, Four Speed 16. 1 x Reverse Gear 17. 1 x Hall Sensor Package List: 1 x Brushless Motor Controller Note: 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