---
product_id: 339353629
title: "UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage**"
brand: "uiotec"
price: "€ 0.56"
currency: EUR
in_stock: false
url: https://www.desertcart.ie/products/339353629-uiotec-dc-dc-buck-converter-4-38v-step-down-voltage
store_origin: IE
region: Ireland
---

# 4-38V input range 5A max adjustable current 75W max power output UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage**

**Brand:** uiotec
**Price:** € 0.56
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power your projects smarter, safer, and stronger with UIOTEC’s ultimate buck converter!

## Quick Answers

- **What is this?** UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** by uiotec
- **How much does it cost?** € 0.56 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/339353629-uiotec-dc-dc-buck-converter-4-38v-step-down-voltage)

## Best For

- uiotec enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Use Marvel:** Ideal for battery charging, solar/wind power systems, and as a robust buck converter module.
- • **Dual Mode Indicator:** Instantly know if you’re in constant current or voltage mode with intuitive LED signals.
- • **Built-In Safety First:** Advanced short-circuit (8A limit) and over-temperature protection keep your setup safe and reliable.
- • **Powerhouse Performance:** Delivers up to 75W and 5A max current—perfect for high-demand projects and LED drivers.
- • **Versatile Voltage Control:** Seamlessly step down 4-38V DC input to your exact output needs with precision adjustment.

## Overview

The UIOTEC DC-DC Buck Converter is a high-efficiency, adjustable step-down voltage regulator supporting 4-38V input and delivering up to 75W power with 5A max current. Featuring constant current and voltage modes, it includes essential protections like short-circuit and over-temperature safeguards, making it ideal for LED drivers, battery charging, and renewable energy applications.

## Description

Parameter Input voltage: 4-38V Output power: 75W(Max) Transfer efficiency: 96%(Max) Output current: adjustabel;5A(Max) Output voltage: 1.25-36V constantly adjustable Input reverse connection protection: NO Short-circuit protection: YES(limited current of 8A) Over-temperature protection: YES(item will stop output automatically) How to set current limits: 1. Adjust constant-voltage potentiometer to make output voltage reach the voltage value which you want. 2. Use 10A multimeter to measure short-circuit output current (directly connect two meters to output interface), at the same time, adjust constant-voltage potentiometer to make output current reach preset over-current protection value. (If the current value multimeter displays is 4A, the maximum current of the module only can be up to 4A; when the current reach 4A, constant-voltage constant-current red indicator light is on, or the light is off) LED indicator light: 1. Red light is on in constant current status and off in constant voltage status. 2. Blue light is on when charging and off when full-charging 3. Green light is on when full-charged. Package includes: 1 X Buck Converter

## Features

- input voltage range is DC 4-38V, output current is adjustable, max output current is 5A, max output power is 75W.
- Multifunctional: it can be used as buck converter module with over-current protection; it can also be used as high-power LED constant current driver module; what's more, it can be used as battery charger (e.g. nickel-cadmium or nickel-metal hydride battery, lithium batteries), can be used in solar panel/wind turbines etc.
- Safe Protection: the buck regulator is designed with short-circuit protection(limit current 8A), over-temperature protection, without input reversed connection protection.
- CC & CV: the volt transformer is with two working modes of constant voltage and constant current, which would be indicated by the red led indicator.
- Note: please kindly note that when buck converter module is used in more than 3A,35W, please strengthen cooling.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074LRQD24 |
| Brand | UIOTEC |
| Brand Name | UIOTEC |
| Current Rating | 5 Amps |
| Current rating | 5 Amps |
| Manufacturer | UIOTEC |
| Minimum Frequency | 50 Hz |
| Model | MNC042518226867505763670 |
| Mounting Type | Panel Mount |
| Mounting type | Panel Mount |
| Power Source | Battery Powered |
| Power source | Battery Powered |

## Product Details

- **Brand:** UIOTEC
- **Power source:** Battery Powered
- **Mounting type:** Panel Mount
- **Current rating:** 5 Amps
- **Minimum frequency:** 50 Hz

## Images

![UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** - Image 1](https://m.media-amazon.com/images/I/61U6Df7xTxL.jpg)
![UIOTEC DC-DC Buck Converter 4-38V Step-Down Voltage Regulator Module Adjustable Current 5A Max 75W High Power Volt Power Supply Transformer Board with Constant Current & Voltage** - Image 2](https://m.media-amazon.com/images/I/61m3xI8mnML.jpg)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-07*