Feature: 1. ENHANCED MOTOR PERFORMANCE: By effectively controlling the motor, this controller can significantly increase motor speed and power output, providing a boost in performance for mobility scooters and electric motorcycles. 2. STABLE AND COMPATIBLE: Equipped with sine wave control technology, the controller offers stable performance and is compatible with QS hub motors or mid drive motors, ensuring a smooth and efficient operation. 3. SELF LEARNING DESIGN: The brushless DC controller is equipped with self learning function, stable performance and high reliability, providing a seamless integration with various electric vehicles. 4. BATTERY GUARD AND RANGE EXTENSION: The controller is designed to protect the battery and extend its lifespan, while also increasing the vehicle's driving range, offering a reliable solution for electric mobility products. 5. HIGH DURABILITY: Brushless DC motor controller is made of premium ABS, metal materials, ensuring durability, high temperature resistance, and rust resistance for long term stable performance. Specification: Item Type: Brushless DC Motor Controller Material: Metal + ABS Model: DK72300S Rated Voltage: 72V Bus Current: 65-85A Phase Current: 300A Speed: 85km/h (The specific speed needs to be combined with vehicle weight and wind resistance) Under Voltage Guard Value: 0.875xVCC±1V Motor Control Mode: FOC Brake Mode: Positive 12V , Negative Compatible Fitment: For QS Motor Electric motorcycle mobility scooter ≤ 3000W . Package List: 1 x Controller 1 x Wiring 5 x Screws Note: Professional installation is highly recommended We have an electronic manual.