Features: 1. Made of high quality plastic and metal materials, durable to use. 2. High efficiency, high torsion and low heating 3. You can use this controller to control the speed of the DC motor 4. With reverse polarity protection, high current protection 5. This controller has potentiometer and CW/CCW switch Specification: Condition: 100% Brand new Item Type: PWM DC Motor Speed Controller Material: Plastic, Metal Input: DC 6~30V Output: up to 80W PWM Range: 10%~95% Current: up to 10A (recommended for use in 6A) Size: Approx. 73.5 x 45.5 x 27mm / 2.9 x 1.8 x 1.1in Package List: 1 x PWM DC Motor Speed Controller 1 x CW/CCW Switch 1 x Knob Cap 1 x Gasket 1 x Nut Use Wring: 1. Connect the power cable to ensure that the CW/CCW switch is in the middle 0 position, connect the DC power supply, ensure that the DC power supply voltage range is greater than 10V, less than 30V, to ensure that the power output power meets the motor working needs. The DC power positive and negative terminals should not be reversed, otherwise The governor may be damaged. 2. Connect the motor, the motor line can be positive or negative. 3. Adjust the switch, the CW/CCW switch is used to control the motor speed direction. When the switch is at the 0 position, the motor stops. 4. Potentiometer knob, adjust the potentiometer knob to change the governor output duty cycle, motor speed changes. Package List 1Made of high quality plastic and metal materials, durable to use. 2High efficiency, high torsion and low heating 3You can use this controller to control the speed of the DC motor 4With reverse polarity protection, high current protection 5This controller has potentiometer and CW/CCW switch