Features APPLICABLE DEVICE --- This PWM motor governor module is suitable for speed regulation of DC motor, fan, fish tank oxygen pump, and other products. EXCELLENT PCB --- The PWM DC motor speed regulator module uses electronic components with excellent circuit board to ensure a longer service life. KNOB ADJUSTMENT --- Simply rotate the knob to change the output, control the positive and negative direction and stop of the DC motor, making it easy to use. VOLTAGE RANGE --- The power supply voltage is DC12‑24V, with a maximum current of 20A, the motor governor module has a wide range of applications. COMPACT DESIGN --- The PWM motor speed control module has a compact size, easy to install and disassemble, with stable and reliable performance. Specification: Item Type: Motor Speed Control Module Model: L0577-0802 Power Supply Voltage Range: DC12-24V Applicable Power: Within 12V 250W, 24V 350W Maximum Current: 20A Package List:1 x Motor Speed Control Module Package List 1 x Motor Speed Control Module