---
product_id: 14929144
title: "SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module"
brand: "smakn"
price: "£8.68"
currency: GBP
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.uk/products/14929144-smakn-dc-dc-converter-12v-step-down-to-dc-3v
store_origin: GB
region: United Kingdom
---

# Efficiency >96% Waterproof Housing Max Heat 40℃ SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module

**Brand:** smakn
**Price:** £8.68
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Ride with Confidence!

## Quick Answers

- **What is this?** SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module by smakn
- **How much does it cost?** £8.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/14929144-smakn-dc-dc-converter-12v-step-down-to-dc-3v)

## Best For

- smakn enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Epoxy sealed and waterproof housing for ultimate durability.
- • **Smart Protection:** Equipped with overload, over-current, and low voltage protection for peace of mind.
- • **Compact & Portable:** Lightweight design makes it easy to transport and install anywhere.
- • **Unmatched Efficiency:** Experience over 96% efficiency, ensuring minimal energy loss.
- • **Versatile Applications:** Perfect for a variety of car devices like LED displays, GPS, and more.

## Overview

The SMAKN DC/DC Converter is a high-efficiency power supply module that steps down 12V to 3V with a robust 3A output. Its waterproof housing and smart protection features make it ideal for various automotive applications, ensuring reliable performance even in challenging conditions.

## Description

SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module

## Features

- All epoxy sealed containers with Waterproof Housing; Non-isolated
- High efficiency: >96%; Reliable, low heat dissipation max. 40 ℃;
- With overload / over-current / over / low voltage protection, stable performance.
- Light compact, convenient to use and transport; Auto recovery
- Widely used in Car device, such as LED Display, Hard Disk Player, MP3, DVD, GPS, etc

## Product Details

- **Brand:** SMAKN
- **Power Source:** Corded Electric
- **Product Dimensions:** 0.83"D x 1.42"W x 0.83"H
- **Current Rating:** 3 Amps
- **UPC:** 709127315188

## Images

![SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module - Image 1](https://m.media-amazon.com/images/I/71x3zmNECjL.jpg)
![SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module - Image 2](https://m.media-amazon.com/images/I/714gDNoKuGL.jpg)
![SMAKN DC/DC Converter 12v Step Down to DC 3V/3A 3V 3A 9W Power Supply Module - Image 3](https://m.media-amazon.com/images/I/61Y0maUVfFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works
*by A***R on September 26, 2024*

It works

### ⭐ One Star
*by P***K on October 14, 2015*

Did not even last a day. Currently puts out 0.2 volts instead of 3.

### ⭐⭐⭐⭐ Just what the engineer ordered
*by B***S on June 5, 2015*

Perfect for what I needed it for...to step down 12V from the end of a strip of LEDs to 3V needed for a small LED spotlight.The leads were clearly marked on the body. Not really plug and play since there are no plugs :) , but I figure if you know enough to know you need this than you probably know enough to know how to use it.

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**Shop now:** [https://www.desertcart.co.uk/products/14929144-smakn-dc-dc-converter-12v-step-down-to-dc-3v](https://www.desertcart.co.uk/products/14929144-smakn-dc-dc-converter-12v-step-down-to-dc-3v)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-22*