The Speed Controller has 6 wires and is widely used in packaging, printing, food, electronics, instrumentation, medical equipment, and clothing industry production lines as a speed drive device. It works with AC220V 50/60HZ power supply and has a rated power of 400W. The speed range is 90-1400r/min 50HZ, 90-1700r/min 60HZ. The product dimensions are 10*8*5cm/3.94*3.15*1.97". To use, turn off the power supply, connect to the wiring diagram, and confirm the connection is correct. Then, turn on the power supply, adjust the speed knob to the desired position, and turn off the power when not needed.