---
product_id: 114286017
title: "Low Voltage DC Motor Speed Controller 1.8v 3v 5v 6v 7.2v 12v 2A 30W PWM 1803BK Adjustable Driver Switch with Speed Control Knob(10 Pack)"
brand: "onyehn"
price: "₨1345"
currency: SCR
in_stock: true
reviews_count: 8
category: "Onyehn"
url: https://www.desertcart.sc/products/114286017-low-voltage-dc-motor-speed-controller-1-8v-3v-5v
store_origin: SC
region: Seychelles
---

# 2A max current rating 0-100% PWM speed control Self-recovery fuse protection Low Voltage DC Motor Speed Controller 1.8v 3v 5v 6v 7.2v 12v 2A 30W PWM 1803BK Adjustable Driver Switch with Speed Control Knob(10 Pack)

**Brand:** onyehn
**Price:** ₨1345
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master your motor’s pace with precision and protection!

## Quick Answers

- **What is this?** Low Voltage DC Motor Speed Controller 1.8v 3v 5v 6v 7.2v 12v 2A 30W PWM 1803BK Adjustable Driver Switch with Speed Control Knob(10 Pack) by onyehn
- **How much does it cost?** ₨1345 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/114286017-low-voltage-dc-motor-speed-controller-1-8v-3v-5v)

## Best For

- onyehn enthusiasts

## Why This Product

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

## Key Features

- • **Built-In Safety Fuse:** 2A self-recovery fuse automatically protects your circuit from overloads and shorts.
- • **Precision Speed Control:** Adjust motor speed smoothly from 0% to 100% PWM duty cycle for ultimate customization.
- • **Compact & Durable Design:** Metal and plastic build fits neatly into any project with a lightweight 78g profile.
- • **Integrated On/Off Switch:** Speed control knob doubles as a reliable on/off switch with tactile click feedback.
- • **Wide Voltage Compatibility:** Supports low voltage DC inputs from 1.8V up to 15V, perfect for diverse DIY projects.

## Overview

The Onyehn 1803BK Low Voltage DC Motor Speed Controller offers adjustable PWM speed control from 0 to 100% for DC motors operating between 1.8V and 15V. Featuring a 2A self-recovery fuse for automatic overload protection and an integrated on/off switch, this compact and durable controller is ideal for DIY electronics, robotics, and automation projects requiring reliable, precise motor speed management.

## Description

Onyehn Low Voltage DC Motor Speed Controller 1.8v 3v 5v 6v 7.2v 12v 2A 30W PWM 1803BK Adjustable Driver Switch with Speed Control Knob(10 Pack): desertcart.com: Tools & Home Improvement

Review: Works great, good value for price - Used with a small dc motor with 2 AA batteries for a diy stem kit type thing. This doubles as an on/off switch when turned all the way, it clicks off. Worked as expected.
Review: Awesome product - I haven't tried 12v but every over input and output, worked wonderful, would recommend 100% . I'm wondering if you they do big bulk

## Features

- 🌟Important Notes： An Appropriately Rated Fuse (Rated A Little Higher Than The Maximum Current You Expect To Draw) Is Recommended To Ensure Safe Operation. The Controller Is Safe With A Self-Recovery Fuse 2a. It Will Be Damaged If Connect The Supply Voltage With Wrong Polarity. Double Check All Connections Before Applying Power And Always Turn Off The Power Supply Before Making Any Wiring Changes
- 🌟Note: Dc Motor Speed Regulator Dc Power Supply, Do Not Be Directly Connected To Household 220v Ac.This Brand New 1803bk Dc Motor Speed Controller Allows Controlling The Direction Of A Dc The Motor Using A Pulse-Width-Modulated (Pwm) Dc Voltage With A Duty Cycle Fully The Product Adjust From 0%-100%.
- 🌟With A Self-Recovery Fuse 2a And A Power-On Led Light.If The Current Is Too Large, It Will Be Automatically Disconnected, And The Fuse Will Automatically Recover After Cooling. Pwm Dc Motor Speed Controller With Switch Function.
- 🌟Connect A Voltage Of 1.8v-15v Dc To The Circuit Making Sure Of The Correct Polarity Of The Connection. Note That The Voltage Applied To The Motor Will Be Supply Voltage Applied To The Circuit. It Is Recommended To Add An Appropriately Rated Fuse In Line With The Positive Supply In Order To Protect The Circuit From Any Possible Short Circuits.
- 🌟This Is A Speed Governor With A Maximum Current Of 2a. If The Continuous Current Is Greater Than 0.5a, The 775 Motor And The Stroller Motor Will Not Move. Don'T Buy It Wrong. It Is Not Recommended To Supply Power Greater Than 12v, Such As 12v Lead-Acid Batteries, Which May Cause Damage To The Governor.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NPJ5MQR |
| Best Sellers Rank | #481,596 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #441 in Electrical Motor Controls |
| Brand | Onyehn |
| Brand Name | Onyehn |
| Circuit Type | series |
| Connector Type Used on Cable | None Required |
| Contact Type | Spdt |
| Current Rating | 2 Amps |
| Customer Reviews | 4.4 out of 5 stars 194 Reviews |
| Item Dimensions L x W x H | 1.26"L x 1.26"W x 0.59"H |
| Item Weight | 78 Grams |
| Manufacturer | Onyehn |
| Material | Metal, Plastic |
| Material Type | Metal, Plastic |
| Model | 1803BK |
| Operating Voltage | 15 Volts (DC) |
| Operation Mode | Automatically,Off |
| Switch Type | Potentiometer |
| Voltage | 15 Volts (DC) |
| Wattage | 30 watts |

## Product Details

- **Brand:** Onyehn
- **Contact Type:** Spdt
- **Current Rating:** 2 Amps
- **Material:** Metal, Plastic
- **Voltage:** 15 Volts (DC)

## Images

![Low Voltage DC Motor Speed Controller 1.8v 3v 5v 6v 7.2v 12v 2A 30W PWM 1803BK Adjustable Driver Switch with Speed Control Knob(10 Pack) - Image 1](https://m.media-amazon.com/images/I/71qfwwXJYOL.jpg)

## Questions & Answers

**Q: I cannot get this to work with a 3.5~9v dc pump (which can be controlled via an inline usb unit similar to this). what resistor is tied to the pot?**
A: It is a PWM. It should work with a DC motor in most instances.

**Q: What size hole for the shaft?**
A: Need more information about the shaft.

**Q: I need to adjust output voltage 0-5vdc (to motor) using 15vdc in (power), will this do that ?**
A: This cannot be done. This is just a speed-regulating motor with a maximum current of 2A. If the continuous current exceeds 0.5A, it won't work. It is not recommended to connect with a voltage exceeding 12v, which may cause damage to the controller

**Q: Can this work as a dc light dimmer?**
A: It should work ok as a low voltage dimmer. Probably OK for LEDs

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, good value for price
*by A***R on April 19, 2025*

Used with a small dc motor with 2 AA batteries for a diy stem kit type thing. This doubles as an on/off switch when turned all the way, it clicks off. Worked as expected.

### ⭐⭐⭐⭐⭐ Awesome product
*by H***. on July 17, 2020*

I haven't tried 12v but every over input and output, worked wonderful, would recommend 100% . I'm wondering if you they do big bulk

### ⭐⭐⭐⭐ Quick Test Run
*by J***N on March 29, 2022*

Out the box with a quick test run, all 6 worked fine. Not sure about long usage, I just received them. Sturdy and easy to use. Speed control is awesome and if they hold-up, they will work perfectly for my project

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-13*