---
product_id: 465149835
title: "DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR"
brand: "drok"
price: "¥7335"
currency: JPY
in_stock: true
reviews_count: 5
url: https://www.desertcart.jp/products/465149835-drok-12v-dc-buck-converter-8-35v-to-3-27v
store_origin: JP
region: Japan
---

# High Efficiency Waterproof Safety Features DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR

**Brand:** drok
**Price:** ¥7335
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR by drok
- **How much does it cost?** ¥7335 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/465149835-drok-12v-dc-buck-converter-8-35v-to-3-27v)

## Best For

- drok enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Equipped with multiple protection features including over-current, over-voltage, and reverse connection safeguards.
- • **Built to Last:** Fully sealed design ensures durability against water, dust, and shocks—perfect for any environment.
- • **Unmatched Efficiency:** Experience up to 95% conversion efficiency with cutting-edge synchronous rectification technology.
- • **Versatile Applications:** Ideal for a variety of projects—from car audio systems to LED displays, this module is your go-to power solution.
- • **Precision at Your Fingertips:** Easily adjustable output voltage with a user-friendly potentiometer for precise tuning.

## Overview

The DROK 12V DC Buck Converter is a versatile and robust voltage regulator that efficiently steps down voltage from 8-35V to a stable 3-27V, delivering up to 5A of power. Its waterproof and durable design, combined with advanced safety features, makes it perfect for automotive and electronic applications.

## Description

DROK DC 8-35V to 3-27V 5A buck Converter Parameters:  Input voltage: DC 8-35V（35V Max）  Output voltage:3-27V (adjustable,please ensure input voltage is at least 3V higher than output voltage)  Output current: 5A Max. (long-term work in 2A doesn't need to enhance heat dissipation)  Conversion efficiency: up to 96%(Max)  Static power consumption: about 12mA  Ripple output: About 100mV (12V to 5V/3A)  Operating temperature:  -20 °c to +60 °c (Industrial grade), -40 °c to 80 °c (limit)  Min voltage margin: 3V  Dimensions: 33 x 25 x 20mm   wiring:  Red wire: connect the red wire to positive pole of input(input +)  Yellow wire: connect the yellow wire to positive pole of output (output +)  Black wire: connect the black wire to negative pole of input or output(input- / output -)   Package Includes:  1 x DC Converter Module

## Features

- Uses synchronous rectification technology, has high conversion efficiency and stable performance; The input should be at least 3V higher than output.
- With potentiometer on the bottom, which allows you adjust the accuracy with the mini screw, but ensures you won't easily change its setting when mounted.
- Fully sealed, outer enclosure acts as a heat sink, specially made to be waterproof, anti-shock, anti-humidity and dust-proof, more durable.
- With reversed-connection protection, over-current protection, over-heating protection and over-voltage protection, hence is safe to use.
- Perfect for electronic hobby project, wide application, you can use it on radio, Car Audio, LED display, motor, cell phone, etc.

## Images

![DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR - Image 1](https://m.media-amazon.com/images/I/61JRdvRu1iL.jpg)
![DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR - Image 2](https://m.media-amazon.com/images/I/71EY04+sWTL.jpg)
![DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR - Image 3](https://m.media-amazon.com/images/I/71VGH2tzChL.jpg)
![DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR - Image 4](https://m.media-amazon.com/images/I/71Xn8v5onvL.jpg)
![DROK 12V DC Buck Converter, 8-35V to 3-27V 5A 135W Voltage Regulater Waterproof Adjustable 3V 5V 9V 12V 24V Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR - Image 5](https://m.media-amazon.com/images/I/71UVgtDflUL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Good product
  

*by A***R on Reviewed in Canada 🇨🇦 on 7 June 2021*

Transformer for dash cam

### ⭐⭐⭐⭐⭐ 







  
  
    Works great, was a great price!  Instructions... Need a little work!
  

*by C***C on Reviewed in the United States 🇺🇸 on 13 May 2020*

We installed this buck converter to step down the voltage on our camper ceiling fan (probably can't name the brand but if you search RV vans and electrical issues, you'll see the multiple pages).  Anyway, it worked great!  Solved our problem of the fan not being able to handle the voltage coming into our system from the solar charge controller.

### ⭐⭐⭐⭐ 







  
  
    Used to convert 24v down to ~16v for Lowrance fish finder
  

*by N***T on Reviewed in the United States 🇺🇸 on 22 December 2022*

Hooked up to my 24v batteries which are in series. I've read that 16v provides the best picture, so wanted to try it out. Tested it at 16v setting the device before wiring it up, head unit reads 15.6v under load.I am excited for spring to come to see if it helps.

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**Shop now:** [https://www.desertcart.jp/products/465149835-drok-12v-dc-buck-converter-8-35v-to-3-27v](https://www.desertcart.jp/products/465149835-drok-12v-dc-buck-converter-8-35v-to-3-27v)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-07*