KNACRO PWM DC Motor Driver 40A DC10-50V Forward Reverse Switch Brush Motor Inverted Module Metal Protective housing Maximum Power 2000W Input voltage: DC10-50V.Output voltage: Load Linear. Input Current: require large than the motor operating current.Output Current: determine load size.Continuous current: 40A within. Maximum power: 2000W .Knob hole: 7mm. Speed type: modulated current.Speed mode: ON \ OFF linear potentiometer 270 degrees.Speed range: 0-100%.&lt; Operating frequency: 25KHZ.Forward Reverse: Support.