Can control the motor forward and reverse, speed regulation, fixed speed, limit multifunction integration, to meet more application needs Applicable motor: brush motor, pushes rod motor, motor within 50W Input optocoupler isolation, none noise, 0.01 second fast switching, stepless speed change. With overcurrent protections signals type: switches button, dry nodes, sensors low levels signals Output capacity: maximums output current 4.2A, maximums power 60W