---
product_id: 258927956
title: "4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module"
brand: "atnsinc"
price: "€ 40.09"
currency: EUR
in_stock: true
reviews_count: 13
category: "Atnsinc"
url: https://www.desertcart.be/products/258927956-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage
store_origin: BE
region: Belgium
---

# 3-40V input range Up to 3A max current Adjustable 1.5-35V output 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module

**Brand:** atnsinc
**Price:** € 40.09
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects smarter, not harder!

## Quick Answers

- **What is this?** 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module by atnsinc
- **How much does it cost?** € 40.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/258927956-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage)

## Best For

- atnsinc enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Simplicity:** Factory-tested and dummy-proof setup means you’re powering your devices in minutes.
- • **Precision Voltage Control:** Easily dial in your exact voltage with a smooth potentiometer knob for flawless power tuning.
- • **Compact & Lightweight Design:** At just 40g per module, these fit seamlessly into any project without bulk or weight.
- • **Reliable 3A Current Handling:** Supports up to 3 amps with optional heatsink, perfect for demanding electronics.
- • **High Efficiency Power Conversion:** Maximize energy savings with a buck converter designed to minimize heat and waste.

## Overview

The ATNSINC 4Pack LM2596 DC-DC Buck Converter modules offer adjustable step-down voltage regulation from 3-40V input to 1.5-35V output, supporting up to 3A current. Compact and efficient, these modules are factory-tested for reliability and designed for easy voltage tuning, making them ideal for professional-grade electronics projects and power supply customization.

## Description

Buy ATNSINC 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works well. Easy to adjust. - Pretty much dummy-proof. Does what it says; easy to adjust the voltage.
Review: Good product. Works as expected. - Using this to take 2x18650 battery (8v+) down to 5V. Very good accuracy. Working just like it should.

## Features

- The input voltage: DC 3 -40 V (Input voltage must be 1.5 V higher than the output voltage, no boost.)
- The output voltage: DC 1.5 - 35 V adjustable.
- The output current: It is recommended to use under 2A, maximum 3A(Additional heatsink is required).
- Steps: 1. Plugged into a power supply (3-40v), the power indicator light is lit, the module to work properly. 2. Adjust the blue potentiometer knob (generally booster clockwise, counterclockwise step-down) with a multimeter monitoring the output voltage to the voltage.
- Package includes:4XLM2596 DC-DC buck converter module（Note：The factory have tested these at max voltage so they are very high by default, takes about 15-20 turns CCW before the voltage starts ramping down)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08L5VRBZS |
| Best Sellers Rank | #707,772 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,384 in Power Converters |
| Brand | ATNSINC |
| Brand Name | ATNSINC |
| Current Rating | 3 Amps |
| Customer Reviews | 4.6 out of 5 stars 143 Reviews |
| Item Weight | 0.04 Kilograms |
| Manufacturer | ATNSINC |
| Minimum Frequency | 50 Hz |
| Model | LM2596 -19000 |
| Mounting Type | PCB Mount |
| Part Number | LM2596 -19000 |
| Power Source | DC |
| Specification Met | CE |
| UPC | 701715445123 |

## Product Details

- **Brand:** ATNSINC
- **Current Rating:** 3 Amps
- **Mounting Type:** PCB Mount
- **Power Source:** DC
- **Specification Met:** CE

## Images

![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 1](https://m.media-amazon.com/images/I/71hH9gLJFKL.jpg)
![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 2](https://m.media-amazon.com/images/I/71iMhE8IE8L.jpg)
![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 3](https://m.media-amazon.com/images/I/71Rdui3vmdL.jpg)
![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 4](https://m.media-amazon.com/images/I/61KHypFkaKL.jpg)
![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 5](https://m.media-amazon.com/images/I/71oKqxiJzyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well. Easy to adjust.
*by A***D on November 2, 2024*

Pretty much dummy-proof. Does what it says; easy to adjust the voltage.

### ⭐⭐⭐⭐⭐ Good product. Works as expected.
*by S***T on August 5, 2022*

Using this to take 2x18650 battery (8v+) down to 5V. Very good accuracy. Working just like it should.

### ⭐⭐⭐⭐⭐ Repurposes wall wart power supplies and solar lights
*by R***M on October 15, 2021*

Cheap solution to reoccuring problem. I used an old wall charger to convert a solar LED light over to electric so I can use it in an area that doesn't get much sunlight. The photo doesn't show the brightness very well. Since the output voltage is adjustable, you can adjust the brightness of the lights. Now our shaded patio can have lots of fun lights!

## Frequently Bought Together

- ATNSINC 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module
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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-07-28*