Product Description
It is composed of a component board and external MOS components. The relay is attracted by controlling the positive and negative poles of the voltage. The positive voltage rotates to the right and the negative voltage rotates to the left. Adjust the voltage (1~4 volts is the first speed, 4~8 volts is the second speed, 8~12 volts is the third speed) to control the high-power voltage regulator, thereby changing the output voltage to achieve voltage regulation (230V---380V) to adjust the motor speed .
Audited Supplier 
){kind=link}