---
product_id: 56340225
title: "DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart"
brand: "drok"
price: "R591"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Drok"
url: https://www.desertcart.co.za/products/56340225-drok-dc-buck-converter-5-3v-32v-to-1-2v
store_origin: ZA
region: South Africa
---

# 12A max current output LCD shows voltage & current live Heat sink for 120W+ stable power DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart

**Brand:** drok
**Price:** R591
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up like a pro — precision, protection, and performance in one sleek package!

## Quick Answers

- **What is this?** DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart by drok
- **How much does it cost?** R591 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/56340225-drok-dc-buck-converter-5-3v-32v-to-1-2v)

## 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

- • **Real-Time Monitoring:** Integrated LCD display keeps you informed with live input/output voltage, current, and power stats.
- • **Precision Power Control:** Adjust voltage from 1.2V to 32V with 0.05V accuracy for flawless device compatibility.
- • **Robust Thermal Management:** Built-in heat sink ensures sustained 120W output without overheating—boost to 160W with enhanced cooling.
- • **Advanced Safety Protections:** Reverse polarity, short circuit, and customizable overcurrent safeguards protect your gear and investment.
- • **Versatile Application Ready:** Perfect for solar panels, RVs, battery chargers, and experimental setups—power your projects with confidence.

## Overview

The DROK DC Buck Converter is a compact, high-performance adjustable power supply module delivering up to 12A current and 160W power with advanced heat dissipation. Featuring a crystal-clear LCD display for real-time voltage and current monitoring, it offers precise voltage control from 1.2V to 32V. Designed with robust safety protections and an acrylic dust-resistant case, this versatile step-down regulator is ideal for solar panels, RVs, battery chargers, and various electronic projects requiring reliable, stable power.

## Description

desertcart.com: DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart : Electronics

Review: Better than I expected. - Having read through a few reviews, I wondered what I was going to receive. Well, as noted elsewhere, there is nothing on assembling the parts, which is honestly not difficult. The only annoying part was removing the protective covering from the plastic. It was date stamped 2023, so the adhesive was maybe a bit more of a problem than it should have been. It was not easy to get a corner to let go, but once it did, it just peeled off with no problem. There are a few complaints about the tiny adjustment screws. Well, this really is not intended as a variable bench power supply, even though some people are apparently trying to use it as such. In a set it and forget it use, it works just fine. The other complaint was that the (output) voltage reading is incorrect -- well, within 0.1V it agreed with my Fluke meter. No problem at all. What I wanted it for was to use a lithium ion battery with a portable radio (Elecraft KX3). 12V Lithium ion batteries are constructed with either three or four cells. With four cells the voltage varies between 12 and 16V. 16V is too high. With 3 cells it varies between 9 and 12V. 9V is too low. So I set this at 14V and max of 4A (actual max is nearer 1.5) and tried varying the input from 9V to 16V. Output was perfectly stable at 14V with the radio operating perfectly as it switched form Buck to Boost. Honestly, I was surprised at how well it works.
Review: Excellent choice for what I needed - Perfect setup for the continuous current/voltage control I needed for different projects. Easy assembly and robust/quality assembly, working great so far! thanks for and excellent product

## Features

- 【Parameter】 DROK Power Supply Module input volt range is DC 5.3-32V; Output volt range is DC 1.2-32V which is variable. Output current can reach to 8A and Output Power can reach to 120W for long-time use. If enhance heat dissipation, this converter can reach 12A and 160W output.
- 【Characteristics】 This Buck Converter is equipped with LCD Display, Acrylic Case and Heat Sink. LCD Screen can display input/output voltage, output current and output power. Voltage precision is 0.05V, current precision is 0.005A. Acrylic case can keep the converter board away from dust, which is protective. Heat Sink can keep module 120W for long-time using in a low temperature. If you want to reach maximum power 160W, please improve heat dissipation.
- 【Easy Operation】 A user manual will be included in package, which can help you easier to operate. The button can control ouput voltage ON/OFF status, and you can set the default output state is ON/OFF for the next time. The potentiometer can help you to adjust volt amp in a simple and fast way.
- 【Protection】 It has reverse-connect protection, short circuit protection and over current protection. When you connect the input wire reversely or short circuit, the module will not burn. And roate the CC potentiometer to set over current protection value you want.
- 【Application】 The volt conversion board can be used for 5v 6v 9v 12v 24V 30V 32V 3a 5a 10a devices, like solar panel, lab, experiment, RV, All-Terrain Vehicle, car, battery charger, LED stripes, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078Q1624B |
| Best Sellers Rank | #24,241 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #93 in Power Converters |
| Brand | DROK |
| Color | blue-1 |
| Customer Reviews | 4.3 out of 5 stars 1,737 Reviews |
| Input Voltage | 32 Volts |
| Item Dimensions | 1.97 x 1.97 x 1.97 inches |
| Item Weight | 90 Grams |
| Item dimensions L x W x H | 1.97 x 1.97 x 1.97 inches |
| Manufacturer | DROK |
| Model Number | REES-1822 |
| Output Voltage | 32 Volts |
| Plug Type | Type A, Type B |
| UPC | 678535742056 |

## Product Details

- **Brand:** DROK
- **Color:** blue-1
- **Input Voltage:** 32 Volts
- **Item Weight:** 90 Grams
- **Item dimensions L x W x H:** 1.97 x 1.97 x 1.97 inches

## Images

![DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step Down Voltage Regulator with LCD Display Volt Transformer Reducer CC CV for RV Solar Panel Golf Cart - Image 1](https://m.media-amazon.com/images/I/71zz5BaeTbL.jpg)

## Available Options

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

## Questions & Answers

**Q: How would i use this as a constant voltage supply if i don’t want a constant current supply (eg, i don’t want to accidentally spike the output v) ?**
A: For me this has been a marvelously useful device.   I power it with the charger "brick" from a retired laptop PC, capable of as much as a couple amps at 25VDC.    The specifications don't make it clear, but you independently set the maximum output current and output voltage using the on-board 10-turn pots while monitoring it on the display.   For example when charging a lithium-ion battery, its specs might suggest a the maximum charging current of 0.5A and maximum output voltage of 4.2V.   So first, you set the open-circuit voltage to 4.2V.   Turn the output current to minimum and connect the batery.   Assuming the battery is pretty well discharged, when you first connect it you could potentially sink as much as several amps but that would hurt the battery.   No problem, you've set the current to minimum (a few mA).  When you connect the battery, turn up the current to 0.5A; the voltage will rise as you turn up the current, probably settling around 3.5V.   (I am assuming that your power source will easily supply the required power.)  As the battery charges, the voltage will gradually increase to 4.2V while the current stays at 0.5A.   But once the voltage gets close to 4.2V the current will start to taper off.   If left for several hours the voltage will still be at 4.2V but the current will be only a few mA.   So the supply acts like constant current, then transitions to constant voltage.    I hope this answers your question.   I  haven't seen any evidence of loss of control over either output voltage or current.   FYI it's worthwhile to experiment with the unit connected to an output load resistor first, to get an understanding of which buttons to press to read the desired values.   From memory, you can read input voltage and current, temperature of the heat sink in F or C, and output voltage and current.   And you can also read output voltage independent of supplying power to the load (i.e. it can act like a voltmeter).

**Q: What does opp error mean?**
A: Dear customer,
OPP:Over-power Protection
When output power reaches 35W, OPP will be enable.
Best regards.

**Q: Is there an operating/owners manual**
A: Good day.
You can get the user manual on product detailed page ---> Product information ---> Technical Specification ---> User Manual [pdf ]
You can also get it via the link below:
https://images-na.ssl-images-amazon.com/images/I/C1RCvx6bFMS.pdf
If there are any problems, please feel free to contact through Amazon's direct messaging service:
https://www.amazon.com/ss/help/contact/?_encoding=UTF8&marketplaceID=ATVPDKIKX0DER&ref_=v_sp_contact_seller&sellerID=AFHAE9RJVUMB
Best regards.

**Q: I need to increase voltage from 11V to 15V, can it do it?**
A: Yes this will work.  This morning I needed to run 2 12V PC fans from a USB 2.0 port.  It worked drawing around 400mA.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better than I expected.
*by P***P on April 26, 2025*

Having read through a few reviews, I wondered what I was going to receive. Well, as noted elsewhere, there is nothing on assembling the parts, which is honestly not difficult. The only annoying part was removing the protective covering from the plastic. It was date stamped 2023, so the adhesive was maybe a bit more of a problem than it should have been. It was not easy to get a corner to let go, but once it did, it just peeled off with no problem. There are a few complaints about the tiny adjustment screws. Well, this really is not intended as a variable bench power supply, even though some people are apparently trying to use it as such. In a set it and forget it use, it works just fine. The other complaint was that the (output) voltage reading is incorrect -- well, within 0.1V it agreed with my Fluke meter. No problem at all. What I wanted it for was to use a lithium ion battery with a portable radio (Elecraft KX3). 12V Lithium ion batteries are constructed with either three or four cells. With four cells the voltage varies between 12 and 16V. 16V is too high. With 3 cells it varies between 9 and 12V. 9V is too low. So I set this at 14V and max of 4A (actual max is nearer 1.5) and tried varying the input from 9V to 16V. Output was perfectly stable at 14V with the radio operating perfectly as it switched form Buck to Boost. Honestly, I was surprised at how well it works.

### ⭐⭐⭐⭐⭐ Excellent choice for what I needed
*by M***L on October 26, 2025*

Perfect setup for the continuous current/voltage control I needed for different projects. Easy assembly and robust/quality assembly, working great so far! thanks for and excellent product

### ⭐⭐⭐⭐ A nice DC/DC power supply
*by D***B on October 10, 2021*

This is a very nice step down power supply with an easily readable blue backlit input and output, voltage and current display. Well constructed, 15 minute self evident assembly required. Works excellently as a charger for an SLA battery from a solar panel (mine 18V). I set this supply to float the battery at 13.65V. I set the output current limit to 0.50A. When the battery reaches the float voltage, the output current drops to 0.00A. Any load on the battery is immediately made up by the supply. The display is powered by either the input or by the output (when charging a battery). I measured 17mA of current to power the display when the output was disconnected. The display only shows the current actually going out the output; input current and output current displays are always the same value. Warnings not to hookup inputs/outputs incorrectly (they supplied a huge diode in this kit but I did not use). The large font LCD display is designed to be viewed from an angle slightly below perpendicular. This is good when viewing laying flat on the bench-top but poor for a vertical wall/panel mount when viewing from above. This supply looks very impressive when included in a project.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-05*