The current of this motor speed controller can be adjusted from 1A to 10A, and it is simple to set.
Suitable for motors of which voltage is 12V with power less than 120W and that is 24V with power less than 200W.
The positive and negative pole of motor can be connected one way or another. Exchange the pole when the rotation direction is not as expected, exchange the pole.
There is a knob, you can rotate it to change output so to change the revolving speed of motor, convenient and easy to use.
Please make sure the positive and negative polarity is connected correctly, and this controller can not be connected to alternating current, or it will be damaged.