Feature: 1. Dual Mode Operation: When the motor hall is normal, it works in the hall mode, and when the motor hall is abnormal or damaged, it switches to work without the hall mode. 2. Automatic Identification: The brushless motor controller can provide stable speed, silent operation, sensitive braking and direction change control, and can automatically identify the phase angle and rated voltage of the electric bike. 3. Aluminum Alloy Shell: The controller shell is made of aluminum alloy, which can defend the internal circuit, facilitate heat dissipation, and avoid thermal overload. 4. Easy Installation: Each interface has a different color for your convenience. Wires and connectors are durable, ensuring low failure rates for extended use. 5. Scope of Application: Brushless controller is efficient and energy saving, suitable for electric bikes, electric tricycles, electric four wheeled vehicles, electric motorcycles, etc. How to Use: If you need accessories, please follow the instructions Specification: Item Type: 3000W Brushless Motor Controller Material: Aluminum Alloy Controller Box Size: 22.5 x 12 x 7cm / 8.9 x 4.7 x 2.8in Voltage: 72/84V Power: 3000W Current Limit: 75A Low Voltage: 63/73V Package List: 1 x Brushless Motor Controller1 x User Manual