Specification：

Brand new, Unused, High quality
Material: Plastic, metal
High efficiency, high torque, low heat generating
Control the speed of a DC motor with this controller 
With reverse polarity protection, high current protection
Input: DC 6~30V
Output: Max 80W
PWM range: 10% ~ 95%
Current: Max 10A (Recommend you to use in 6A)
Wih potentiometer
With reversible switch
All tested before shipment 

Operating Instruction:

1. Connect it to the power, ensure the positive inversion switch located in the middle of the zero, 
and connected with a DC power supply(the DC supply voltage range is more than 6V and less than 30V).
 Warning: do not reverse the positive and negative terminals of DC power source, otherwise regulator 
may be damaged.

2. Connect it to the motor, the motor line can be positive or negative, when the running direction is
 not consistent with the expectative one, you can adjust the sequence of lines or switch position to 
change the direction.

3. Adjust the switch. Positive inversion switch is used to control the motor speed direction. When the 
switch is located on the zero position, the motor stops rotating.

4.Adjust the potentiometer knob. Adjusting potentiometer knob can change output duty ratio of the 
regulator, then motor speed change.