CCM2NJ PWM DC motor speed controller stepless variable speed positive and negative switch pulse width motor speed 12 40V

Features:
-High-performance DC motor governor, without squeaking and whistling sound, the product uses sufficient material, high power, small heat, high efficiency and large torque.
-The governor adopts high-grade sealed potentiometer with switch function and with positive and negative control. The price is 3 times that of ordinary potentiometer. Ordinary potentiometer is not dustproof. After a period of time, the speed regulation is easy to jump unstable. .
-Positive and negative control switch with power indicator and speed control knob with switch function
-With 10A fuse, reverse power supply, control voltage overvoltage, high current protection

Note:
The positive and negative power supply cannot be reversed. When wiring, be careful that the terminal must not touch the heat sink. It is best not to bring electricity to the wiring.