AC 220V 50Hz 15-400W Motor Speed Controller Digital Adjustable Stepless Motor Speed Controller 0-1450Rpm Speed Control Knob: This knob can adjust motor speed and display in real time._x000D_ There are 5 controllers in different power and you can choose you need._x000D_ It has compact size, high precision, wide speed controlling range, and long service life._x000D_ Built-in capacitor, supporting CW/CCW rotation._x000D_ Widely used in packaging, printing, food, electronics, instruments, clothing industry production line for speed drive device. Connect COM and CW, the motor rotates in forward direction; connect COM and CCW, the motor rotates in reverse direction._x000D_ Specification:_x000D_ Model: UX-52_x000D_ Input Voltage: AC 220V 50Hz_x000D_ Optional Power: 15W, 60W, 120W, 250W, 400W_x000D_ Output Speed: 0-1450rpm_x000D_ Speed Adjustable Range: 0-1450rpm_x000D_ Operation Mode: Manual Precision_x000D_ Speed Change Rate: less than or equal to 2%_x000D_ Steady Speed Precision: 10_x000D_ Port: Pin_x000D_ Size: . 10 x 10cm/3.9 x 3.9inch_x000D_ Weight: . 322g / 11.4oz_x000D_ Colour: Black_x000D_ Material: ABS Package Contents:_x000D_ 1 x Motor Speed Controller Only the above package content, other products are not included._x000D_ Note: Light 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_