This PWM motor uses two high-voltage and low internal resistance MOS tubes, as well as the front-stage driver, with more stable performance. With digital tube display to display motor regulation duty cycle, upper and lower duty cycle limits, and frequency. Adopts a rotary knob for motor speed adjustment, turn left to decrease speed, and turn right to increase speed; short press it to control motor starts/stops, and long press it to enter into setting mode. Features: High Power and More Stable: Uses two high-voltage and low internal resistance MOS tubes, as well as the front-stage driver, with more stable performance. Supports high voltage and high power. Digital Tube Display: Support to display motor regulation duty cycle, upper and lower duty cycle limits, and frequency. High Precise: The digital encoder adopts a rotary knob for motor speed adjustment, which is more precise than ordinary potentiometer adjustment, better consistency, and no drift. Rotary Encoder: Turn left to decrease speed, and turn right to increase speed; short press it to control motor starts/stops, and long press it to enter into setting mode. Indicator Light: Equipped with a motor status indicator light that illuminates on startup and extinguishes on shutdown. Motor Soft-starts Function: The current increases slowly when the motor starts, with no inrush current, does not damage the battery, effectively protects the motor, and prolongs its service lifespan. Automatic Starts-stop: It is equipped with a start/stop button. It can be controlled by an external switch to meet the customer's multiple control needs, more convenient. Specifications: Name: PWM Direct Current Motor Material: plastics Working voltage: 5-30VDC Rated current: 5A, max 15A Power: Max 150W Working frequency: 1KHZ-99KHZ adjustable, 1KHZ steps, the default frequency of 20KHZ, accuracy of about 1% Duty cycle: 0-100%, 1% steps Installation size: 39.3 * 76.5mm / 1.55 * 3.01in Item size: 79 * 48 * 26mm / 3.11 * 1.89 * 1.02in Item weight: 43g / 1.52ounce Package size: 110 * 65 * 50mm / 4.33 * 2.56 * 1.97in Package weight: 68g / 2.40ounce Packing List: 1 * PWM Direct Current Motor