---
product_id: 76147243
title: "2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator"
brand: "zjlbty"
price: "0.37 OMR"
currency: OMR
in_stock: false
reviews_count: 1
url: https://www.desertcart.com.om/products/76147243-2-packs-12v-40v-8a-pwm-dc-motor-controller-variable
store_origin: OM
region: Oman
---

# 40V max input 0-100% speed control Reverse polarity protection 2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator

**Brand:** zjlbty
**Price:** 0.37 OMR
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Take Control of Your Speed—Where Precision Meets Power!

## Quick Answers

- **What is this?** 2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator by zjlbty
- **How much does it cost?** 0.37 OMR with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/76147243-2-packs-12v-40v-8a-pwm-dc-motor-controller-variable)

## Best For

- zjlbty enthusiasts

## Why This Product

- Trusted zjlbty brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Equipped with reverse polarity and overload protection for peace of mind.
- • **Powerful Performance:** Delivers up to 8A continuous current for robust applications.
- • **Effortless Installation:** Easily replaceable potentiometer for a hassle-free setup.
- • **Versatile Compatibility:** Perfect for fans, pumps, and more—adaptable to your needs.
- • **Unleash Your Motor's Potential:** Transform your DC motor experience with precision speed control.

## Overview

The 12V-40V 8A PWM DC Motor Controller is designed for efficient speed regulation of various DC motors and devices. With a maximum input voltage of 40V and a continuous current capacity of 8A, it features adjustable speed control from 0% to 100% using pulse width modulation. The controller includes reverse polarity protection and overload safeguards, ensuring safe operation. Its user-friendly design allows for easy installation and compatibility with a wide range of applications.

## Description

PWM 12V -40V 8A DCMotor governor Adopt PWM speed regulation technology, with high conversion efficiency, stable circuit and performanceThe motor speed controller can easily provide a continuous current to your DC A good speed controller for DC motors.the speed of a; Wide speed regulating range: DC 12-40V; Maximum output power is320W (under the situation of more than 25V)

## Features

- This product is suitable for the speed regulation of DC12V - 40V DC motor, fan, fish tank oxygen pump and other products. Maximum 40V * 8A = 320W Input voltage: DC12V - 40V Control power: 0.01W - 400W Applicable current: rated current 8A, maximum passing current 10A, quiescent current 0.02A [standby state] PWM pulse width speed range: 10% - 100% PWM frequency: 13khZ
- The DC motor speed controller allows the use of pulse width modulation (PWM) DC voltage to control the speed of the DC motor, and the duty cycle can be fully adjusted from 0% to 100%.
- Easily deliver 8A continuous current to your DC motor or other DC load. Input power supply voltage: 12V-40VDC motor speed controller,
- The potentiometer can be removed and replaced with an external connection type. The interface is ready to go without having to stick to the board. If you need forward and reverse functions, you have reserved a positive and negative potentiometer socket. You can install as needed. With 10A fuse [5mm * 20mm standard], with reverse power protection, overload protection
- Let you be satisfied with our services, not just our products. If you are not satisfied with our products for any reason, simply contact the support department for a replacement or refund. We will answer any questions you may have within 24 hours.

## Images

![2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator - Image 1](https://m.media-amazon.com/images/I/61TFwKUhBlL.jpg)
![2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator - Image 2](https://m.media-amazon.com/images/I/61g6OMAo9OL.jpg)
![2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator - Image 3](https://m.media-amazon.com/images/I/61v0H5cxxZL.jpg)
![2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator - Image 4](https://m.media-amazon.com/images/I/61gjyiIQFvL.jpg)
![2 packs 12V-40V 8A PWM DC motor controller Variable speed governor Speed control knob with reverse polarity protection 12v variable speed switch pulse width modulator - Image 5](https://m.media-amazon.com/images/I/61FTh0Y6X4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Really good!
  

*by A***S on Reviewed in the United States on May 16, 2020*

Really good product, I'll buy it again!

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**Shop now:** [https://www.desertcart.com.om/products/76147243-2-packs-12v-40v-8a-pwm-dc-motor-controller-variable](https://www.desertcart.com.om/products/76147243-2-packs-12v-40v-8a-pwm-dc-motor-controller-variable)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-01*