---
product_id: 81860800
title: "LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display"
brand: "qebidum"
price: "₨4559"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/81860800-lm2596s-dc-dc-buck-converter-diy-4-40v-to-1
store_origin: LK
region: Sri Lanka
---

# 4-40V input range 1.25-37V adjustable output Thermal & short-circuit protection LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display

**Brand:** qebidum
**Price:** ₨4559
**Availability:** ✅ In Stock

## Summary

> 🔧 Power your projects with precision and protection!

## 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 by qebidum
- **How much does it cost?** ₨4559 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/81860800-lm2596s-dc-dc-buck-converter-diy-4-40v-to-1)

## Best For

- qebidum enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Slim 6.1x3.4x1.2 cm design weighing just 22g, ideal for space-conscious setups.
- • **Robust Current Handling:** Delivers continuous 2A output with 3A peak, ensuring stable power supply.
- • **Precision Voltage Display:** ±0.05V accuracy with switchable input/output readout for real-time monitoring.
- • **Wide Input & Output Range:** Supports 4-40V input and 1.25-37V output, perfect for versatile DIY projects.
- • **Built-in Safety Mechanisms:** Includes reverse polarity, short-circuit, and thermal shutdown protections for worry-free operation.

## Overview

The LM2596S DC-DC Buck Converter is a compact, high-precision step-down voltage regulator module featuring a digital LED voltmeter with ±0.05V accuracy. It supports a broad input voltage range of 4-40V and adjustable output from 1.25-37V, delivering up to 2A continuous current with built-in protections against reverse polarity, short circuits, and overheating—making it an essential tool for professional-grade DIY electronics and power management.

## Description

LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display

## Features

- LM2596 Buck Converter Module with voltage display function, the displayed accuracy is ± 0.05V, range is 0 - 40V.( Note: in order to voltage display more accurate, please ensure that the input voltage is higher than 4V).
- Tips: due to different batches, green or blue board will be delivered randomly. LED digital voltmeter tube, the accuracy is adjustable function, can be aimed at your multimeter adjustable accurate.
- Press the right key to let the display show the input or output voltage. when the right “OUT” led light, it shows output, the left “IN” led show input.
- Continuously adjustable output voltage range of 1.25V -37V, 4-40V input voltage range.(The input voltage is at least high than the output voltage of 1.5V).
- Output current: 2 A continuous output. Output power: the maximum 15 w. ensured 3A output load current, current limit protection, and thermal shutdown.

## Product Details

- **Brand:** QEBIDUM
- **Connectivity Technology:** DC Barrel
- **Connector Type:** Barrel Jack or Terminal Block
- **Color:** BLUE
- **Input Voltage:** 40 Volts
- **Amperage:** 2 Amps
- **Wattage:** 15 watts
- **Number of Items:** 1
- **Output Voltage:** 37 Volts (DC)
- **Power Source:** DC

## Images

![LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display - Image 1](https://m.media-amazon.com/images/I/6157z0RLfdL.jpg)
![LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display - Image 2](https://m.media-amazon.com/images/I/51GCfKSbcgL.jpg)
![LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display - Image 3](https://m.media-amazon.com/images/I/51mR7vEe1LL.jpg)
![LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display - Image 4](https://m.media-amazon.com/images/I/61m5wFJbXyL.jpg)
![LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display - Image 5](https://m.media-amazon.com/images/I/617QHnDDR0L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ I WIN!  Made it so my robot can use a bigger battery,
*by J***N on March 18, 2019*

I Connected a 32v lightweight Mighty Jump automotive Jumper battery to my tank frame Arduino Robot. their product allowed me to lower the 32v down to 11.1v so my robot has a function time of 40 min compared to 10 min the other 11.1v battery pack was giving me. just know when the battery starts to give out less volts its output drops volts too. make sure power supply is fully charged before setting the output

### ⭐⭐⭐⭐⭐ 100% Satisfied
*by A***E on July 23, 2020*

Got this so I could run fpv on my rc truck. Works exactly as it should easy to adjust, and love the read out.

### ⭐⭐⭐⭐ pretty shoddy
*by J***E on December 20, 2023*

poor quality construction. it looks identical to others on amazon, but isn't. took the advice from a reviewer and bought a pair for $2 more.be careful connecting the wires. no reverse polarity protection. burned up this one and one of the other pair i ordered.

## Frequently Bought Together

- QEBIDUL LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display LM2596 With LED Blue LM2596
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- HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-19*