2A-20A 1.8V-35V DC Motor Speed Control Controller Module PWM Regulator Switches. ? Name:DC Motor Speed Control Controller Module. ? Voltage: 1.8V-35V. For specific parameters, please refer to the image details. The module is a DC motor speed controller and LED dimmer with switching functionality. It employs PMM stepless speed regulation and can also be used to adjust lighting. The power switch and output voltage are controlled by a potentiometer: turning clockwise activates the switch, while further clockwise rotation adjusts the output. Regarding dimming: This module cannot directly control standard LED strips. It is only suitable for PWM-dimmable LEDs, providing the PWM signal required for dimming operation. Widely used in DC motor speed control, automotive fans, electrical equipment, duct exhaust fans, treadmill speed regulation, fans, aquarium aerators, and lighting dimming, thereby achieving dimming and voltage regulation effects. According to your Choose. If you are not satisfied with the item, please contact with us. Any problem, please feel free to contact with us. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply to. Your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your. For the functional products in our shop, we make sure that the functions are the same as description, but the actual color and shape may looks a little different from pictures because of the technical improvement and manufacturing variance.