Feature:1. High-performance DC motor speed regulator adopts thyristor BTA41-600B and 25A rectifier bridge.2. Input with filter capacitor, overcurrent protection fuse.3. Built-in upper limit voltage adjustment resistor, users can adjust the maximum speed according to need.4. Reserved lower limit voltage adjustment design.5. Reasonable circuit layout, easy to wire and use.Specification:Item Type: DC Motor Speed ControllerModel: CCM220DCSPotentiometer: 500K 2WInput Voltage: 220vAC (110V is also ok, power turns into a half)Armature Output: About DC 10-210VMaximum Power: 2000W motorMaximum current is within 10A for a long time use, note that the maximum current of the motor is larger than the rated current.Item Weight: Approx 145gItem Size: 8.5x6x4cm / 3.35x2.36x1.57inPackage Weight: Approx 152g.Package List:1 x Motor Speed Controller