500W Motor Speed Controller AC 220V Precision Regulator Controller Forward and Reverse Motor Speed Controller Widely used in packaging, printing, food, electronics, instrumentation, clothing industry production lines as a speed-regulating drive device_x000D_ There are 6 wires for the speed regulator, the red wire is the main motor (power wire), the green and white are the capacitor secondary wires, and the two blue are the speed control feedback wires. The yellow wire is the ground wire_x000D_ The action switch only controls the action or stop of the motor, and is not used for power interruption. Please turn off the power if it is not used for a long time_x000D_ To change the direction of the motor, just change the jumper between "CCW" and "CW" on the terminal block on the back of the controller_x000D_ _x000D_ colour: as shown_x000D_ Material: ABS_x000D_ _x000D_ Package Contents:_x000D_ 1 x 500W Motor speed controller_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_