Features: Low power consumption, module power consumption 0.6W, statictype 0.1W. Active at low level, input is the negative poles of the optocoupler. If the voltages is lower than 2V, it is considered that there is a signal. Through the jumperport, you can select jogs modes or self-locking modes. Support motor forward, reverse, and automatic control long work time. Applicable to occasion where the motor control requirements are increased. Specifications: Material:Plastic Size:Approx.8.3x4.6cm/3.27x1.81" Rateds Current: 5A Working Voltages: 4 - 40 V Response Speed: K1/K 2 is 20ms; SW 1/SW2 is 50ms Motor Type: for Direct Currents Motor Package Includes: 1 Piece Forward Reverse Controller note: Please allow 1-2cm errors due to manual measurement,Please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.