Features:

• CCM4N Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM). 
• Provide smooth variable speed capability for DC motor
• Equipped with a special potentiometer which controls the positive-stop-reverse rotation and speed of DC motor.
•  (The potentiometer can be replaced by rocker potentiometer.)
• Equipped with IC which can check the Hall-effect current. 
• (it will stop working when the instantaneous peak current is up to 6.4A).
• The input supply voltage speed range is DC12V-30V
• Duty Cycle adjustable range is 0%-100%.
• Output power: 12V50W(max); 24V100W(max).
• Potentiometer cable length is 20cm.
• Item size: 3.03*1.81*1.14 inches ; Net Weight:1.62 ounces

Operating instruction: 

   Before you attempting to wire the controller, make sure power is off.
   WARNING: DO NOT REVERSE POSITIVE AND NEGATIVE POWER LOADS.THIS WILL DAMAGE THE CONTROLLER.

   1. Connect wires refer to the "wiring diagram" (NO.4 picture).
   2. Turn on the power, and adjust the potentiometer.
   3. The stop pot is located in the middle of the potentiometer. 
        If you want to change the stop pot, adjust the compensate potentiometer.
        Adjusting the potentiometer, the speed and turn of DC motor change as the "wiring diagram"(NO.4 picture).)

Package Including: 

 1 x DC Motor Speed Controller