High power Hall-free brushless drive with a wide voltage range of 12-36V, maximum current of 15A, and maximum power of 500W. Most motors are compatible, though a small number may not be fully compatible. Testing is required by the user. It is recommended to use an adjustable power supply in current limiting mode to test the actual no-load current for abnormalities to prevent damage during high power operation. Supports forward and reverse switching. Speed regulation can be achieved using a potentiometer, typically 10-50K, or via a 5V PWM signal. Do not reverse the input power polarity. The output UVW three-phase must not be short-circuited to avoid damage. Equipped with an 18mm thick heat sink. High power usage depends on actual heat generation; if excessive heating occurs, add a fan for forced air cooling. No socket or wiring is included; soldering is required using a grounded soldering iron to prevent inductive damage. Forward/reverse switch and speed regulating potentiometer are not included and must be prepared separately. Specifications: Voltage range: 12V-36V Current: 10A Drive power: 500W (dependent on working voltage) Speed control: voltage regulation or microcontroller-based PWM regulation Material: plastic Color: green Package Contents: 1 x Motor Speed Controller Note: Light reflection and display differences may cause slight color variations between the image and actual item. Measurement error allowed is +/- 1-3cm.