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