---
product_id: 327643132
title: "LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display 2PCS"
brand: "zovfam"
price: "฿708"
currency: THB
in_stock: true
reviews_count: 1
category: "Zovfam"
url: https://www.desertcart.co.th/products/327643132-lm2596s-dc-dc-buck-converter-diy-4-40v-to-1
store_origin: TH
region: Thailand
---

# 4-40V input range LED voltmeter display 1.25-37V adjustable output LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display 2PCS

**Brand:** zovfam
**Price:** ฿708
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects with precision and confidence — never settle for less!

## Quick Answers

- **What is this?** LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display 2PCS by zovfam
- **How much does it cost?** ฿708 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/327643132-lm2596s-dc-dc-buck-converter-diy-4-40v-to-1)

## Best For

- zovfam enthusiasts

## Why This Product

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

## Key Features

- • **Robust Power Handling:** Supports stable 2A output current with up to 15W power—perfect for powering your DIY electronics reliably.
- • **Smart Safety Features:** Built-in overheat and short circuit protection safeguard your devices and your peace of mind.
- • **Plug & Play Flexibility:** Screw terminals enable quick, solder-free setup or secure soldered connections for professional-grade builds.
- • **Precision Voltage Control:** Easily dial in your exact voltage needs from 1.25V to 37V for ultimate device compatibility.
- • **Real-Time Voltage Monitoring:** Integrated LED voltmeter lets you instantly verify output voltage, ensuring your projects run flawlessly.

## Overview

The LM2596S DC-DC Buck Converter is a versatile step-down voltage regulator module that converts 4-40V input to a finely adjustable 1.25-37V output with up to 2A current. Featuring an integrated LED voltmeter for real-time voltage display, solder-free screw terminals for easy installation, and built-in safety protections, this module is ideal for DIY electronics enthusiasts and professionals seeking reliable, customizable power solutions.

## Description

LM2596 Buck Converter DC Voltage Regulator Adjustable 4-40V to 1.5-37V DC-DC Step Down Buck Power Converter Supply Module with LED Display, Pack of 2 How to Use the LM2596 Buck Step-down Power Converter Module: 1, Connect Input Voltage: Connect a DC voltage source (4.0V to 40V) to the input terminals. Ensure the input voltage is at least 1V higher than the output voltage you wish to set. For example, if you want to set the output to 5V, the input voltage should be at least 6V. 2, Set Output Voltage: Use the potentiometer (adjustable knob) on the module to set the desired output voltage between 1.25V and 37V. Turn the knob slowly to fine-tune the voltage. Note: To ensure accuracy, the input voltage should be at least 4.0V above the desired output voltage. 3, Check Output Voltage with Voltmeter: The built-in digital voltmeter will display the current output voltage. If the voltmeter is not visible, tap the right button to switch between input and output voltage displays. 4, Turn Off Voltmeter When Not Needed: To save power, the voltmeter can be turned off by pressing the left button. Tap the button again to turn it back on. 5, Monitor Current Draw: The module can supply a maximum current of 3A. For continuous operation, it is recommended to use the module with an operating current of 2A or less. For currents above 2A, consider adding a heatsink for better thermal management. 6, Overheat and Short Circuit Protection: The module has built-in overheat and short circuit protection. If the temperature exceeds safe limits or a short circuit is detected, the module will automatically shut down to prevent damage. 7, Use Terminals for Easy Connection: The module features screw terminals for easy wire connection. No soldering is required, making it convenient to use in DIY projects or quick setups. 8, Save Settings: The settings are saved even when the module is powered off. This ensures the output voltage remains the same when you turn the power back on, offering convenience for repeated use.

Review: Device picture doesn't match the product - It works fine, but the device just has one button for the display, so the display doesn't turn off. I went for this option because specifically in the picture it had 2 buttons and after all it wasn't the product picture! Be aware, because it may be important depending on what you want!

## Features

- Adjustable Output Voltage Range: Allows for flexible voltage adjustment from 1.25V to 37V; easily adjust the output to match the voltage requirements of various devices; perfect for DIY electronics and power supply projects
- Reliable Power Conversion: Converts input voltage from 4.0V to 40V to a stable output of up to 37V; provides a steady 2A output current, with a maximum power output of 15W; suitable for powering small electronic devices and circuits
- Solder-Free or Soldered Connections: Features both a terminal block for easy connection and soldering points for more secure installations; provides flexibility depending on your project needs; no soldering required for quick setups
- LED Voltmeter Display: Equipped with a digital voltmeter to monitor output voltage precisely; switch between input and output voltage displays with ease by pressing the button on the right; turn off the display when not in use by pressing the left button
- Easy Voltage Adjustment: Adjust output voltage using the built-in potentiometer; rotate clockwise to increase voltage, counterclockwise to decrease it; factory default output is 20V, but can be easily reset for proper use by rotating the potentiometer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08JCXXVJY |
| Best Sellers Rank | #12,593 in Electronics ( See Top 100 in Electronics ) #250 in International Power Adapters |
| Brand | Zovfam |
| Color | Blue |
| Colour | Blue |
| Customer Reviews | 4.0 out of 5 stars 21 Reviews |
| Input Voltage | 4 Volts |
| Input voltage | 4 Volts |
| Item Weight | 2.46 Ounces |
| Item weight | 2.46 Ounces |
| Manufacturer | Zovfam |
| Model Number | LM2596s |
| Output Voltage | 35 Volts |
| Output voltage | 35 Volts |
| Plug Type | Type C |
| Plug type | Type C |

## Images

![LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display 2PCS - Image 1](https://m.media-amazon.com/images/I/71HQ57WPKeL.jpg)

## Customer Reviews

### ⭐⭐⭐ Device picture doesn't match the product
*by T***O on 11 December 2024*

It works fine, but the device just has one button for the display, so the display doesn't turn off. I went for this option because specifically in the picture it had 2 buttons and after all it wasn't the product picture! Be aware, because it may be important depending on what you want!

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-08*