Features 1、The motor controller is powered by AC power source. 2、The output voltage of the motor is between AC50~200V. 3、The motor controller can control a maximum power of 2000W. 4、Up to 25A current can be controlled by the motor controller. 5、Connect the controller in series with the lamp of the desk lamp or the appliance, (ie, disconnect the lamp or the electrical appliance from any of the fire or neutral wires, and connect the two wires of the controller to the rotate potentiometer.) Rotating rod can play the role of brightness adjustment, <span class="ui-risk_flag3"><span class="ui-risk_flag3">speed</span></span> regulation, pressure regulation and temperature adjustment; it is very convenient to use. Specification Item Type:PWM AC Motor Speed Controller Maximum Power:2000W Maximum Current:25A Size:Approx.50 x35mm/1.97 x 1.38inch Package List 5 x Module