HiLetgo 2000W PWM AC Motor Speed Control Module Dimmer Speed Regulator 50-220V Adjustable Voltage Regulator Input supply voltage: 110V ~ 220V AC The output voltage:50V-220V(Output voltage &lt; = Input supply voltage) The maximum output power: 2000W; The maximum output current :25A Item size: 1.85*1.38*1 inches; Net weight: 1.76 ounces Operation environment temperature:-20'C-40'C;High efficiency,high torque,low heat generating