Features Reliable and Stable: This DC motor governor is an electronic control method to regulate the working speed, reliable and stable performance, and can be used at ease. 6 to 90V Ultra Wide Range: This DC motor governor can do 6 to 90V range use, so you can use a wider range of products without worrying about the performance of the product is not enough. No Positive or Negative Motor Connection: This DC motor governor can be connected without any positive or negative direction, and the direction can be changed by adjusting the wire sequence. Safety Protection: This DC motor governor needs to adjust the knob to the 0 position when using, slowly adjust the knob to raise or lower the voltage, not instantaneous rise or fall, the voltage meter is lower than the supply voltage off, for your use of Scope of Application: This DC motor speed regulator is only used for brush DC motors, not for brushless DC motors, can not be used as a voltage regulator. Specification: Item Type: DC Motor Speed Controller Applicable Voltage: DC(DC6V-90V Wide Voltage), and can not be connected to AC power Static Current: 0.005A (Standby State) Input Voltage: DC6-90V Rated Current: 15A Rated Power: 225W Regulating Range: PWM output range 0 to 100 percent Motor tuned to stop maximum speed PWM Frequency:16kHZ Motor Positive and Negative Direction: Connected to the motor can not be divided into positive and negative, can be adjusted by adjusting the line sequence to change the direction Package List: 1 x Governor  Note: This governor is only for brush DC motor use, not for brushless DC motor, can not be used as a voltage regulator. 1. DC motor governor input is DC power, not directly connected to AC power, otherwise it will burn out. 2. DC power supply positive and negative polarity can not be reversed, otherwise the speed regulator will be damaged. 3. The motor can not be divided into positive and negative, when the direction of operation and the expected inconsistency, you can change the direction by adjusting the line sequence. 4. Adjust the potentiometer knob can change the speed governor output duty cycle, so as to change the motor speed. Package List 1 x Governor