---
product_id: 367134965
title: "3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display"
brand: "valefod"
price: "C$1365"
currency: NIO
in_stock: true
reviews_count: 6
category: "Valefod"
url: https://www.desertcart.ni/products/367134965-3-pack-lm2596-dc-to-dc-voltage-regulator-4-40v
store_origin: NI
region: Nicaragua
---

# 4-40V input range Compact 57x36x13mm size 1.5-35V adjustable output 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display

**Brand:** valefod
**Price:** C$1365
**Availability:** ✅ In Stock

## Summary

> 🔧 Power your projects with precision — don’t get left in the voltage dark!

## Quick Answers

- **What is this?** 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display by valefod
- **How much does it cost?** C$1365 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/367134965-3-pack-lm2596-dc-to-dc-voltage-regulator-4-40v)

## Best For

- valefod enthusiasts

## Why This Product

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

## Key Features

- • **Compact & DIY-Friendly:** Miniature 57x36x13mm modules with easy potentiometer adjustment for seamless integration.
- • **Wide Input Flexibility:** Supports DC 4V to 40V input, perfect for diverse electronic projects and battery setups.
- • **Precision Power Control:** High-Q inductors & solid capacitors ensure ultra-stable voltage with minimal noise.
- • **Adjustable Output Voltage:** Continuously tunable from 1.5V to 35V with a max 3A current to fit any custom need.
- • **Built-in Safety & Display:** LED voltage display plus short circuit and over-temperature protection for worry-free use.

## Overview

The Valefod 3 Pack LM2596 DC-DC Buck Converters deliver high-efficiency (up to 92%) voltage regulation from 4-40V input down to a finely adjustable 1.5-35V output at up to 3A. Featuring thickened circuit boards, advanced solid-state capacitors, and LED voltage displays, these compact 57x36x13mm modules are designed for professional-grade DIY electronics, offering reliable noise filtering, safety protections, and easy voltage tuning for a wide range of power applications.

## Description

Features: - DC-DC step-down module - Thickened circuit boards - Advanced solid-state capacitor - Short circuit and over-temperature protection - 100% tested, sealed in anti-static packaging Kindly Note: 1. Input voltage must be 1.5 V higher than the output voltage, no boost 2. Do not reverse the input and output interface 3. Keep output under 2A (or 15W), and use a heat sink when for a long time working How to Calibrate the Digital Tube Voltmeter (Optional steps for the person who need a highly accurate voltage value) 1. Short press the left "ON/OFF" button to start up the digital tube voltmeter. Long press(>1s, 4 seconds) the left button to enter self-calibration of voltage measurement(calibration range: -0.5-0.5V, factory setting is 0.0). "IN" indicator lights = input voltage measurement calibration starts. Then, long press(>2 seconds) the right "Mode" button, "OUT" indicator lights = output voltage measurement calibration starts. Tap the left / right button to reduce / rise by one unit (since the voltage value of one unit is less than 0.1V, you need to 1-5 times tap the button continuously, so that the voltmeter can change by 0.1V)3. After calibration, long press(>2 seconds) the right "Mode" button to preserve the adjusted value(no loss with outage) and back to normal voltage display. Specifications: - Model: LM2596 / Digital Tube Voltmeter - Input voltage: DC 4V - 40V - Output Voltage: DC 1.5V - 35V (adjustable) - Output Current: 3A (max.) - Conversion Efficiency: 92% (max.) - Switching Frequency : 150KHz - Operating Temperature: -45℃ to +85℃ - Size(L x W x H): 57*36*13mm - Weight: 21g Package List: 3x DC-DC Buck Converter Module with LED Display

Review: ليس كام في الاعلان، جاء بزر واحد فقط. لكن يعمل بشكل جيد حتى الآن
Review: I bought these for my "build a lifesize working R2-D2 robot project". They work extremely well taking a 24VDC input from two scooter batteries and regulating it down to 12VDC and another one I use for 5VDC. They are incredibly compact by design and super easy to hook up and adjust the output voltage to your needs. I tested them with my multimeters and the regulated output voltage matched the onboard display readout perfectly. A GREAT product that I will definitely buy again should the need arise... like building an R5-D4 next....hmmmm anyway. It's a super product at a great price. I bought a package of 3 and all worked perfectly!

## Features

- 【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects.
- 【Input Voltage】DC 4V to 40V (input voltage must be 1.5V higher than the output voltage, no boost).
- 【Output Voltage】DC 1.5V to 35V voltage is continuously adjustable, maximum output current is 3A.
- 【Mini Size】57*36*13 mm (with potentiometer). 3pcs included.
- 【Easy to DIY】Connect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WQJ2GD6 |
| Best Sellers Rank | #10,150 in Electronics ( See Top 100 in Electronics ) #216 in International Power Adapters |
| Item model number | VA-0162-BL |
| Item weight | 0.1 Kilograms |
| Manufacturer | Valefod |
| Product Dimensions | 3.56 x 5.59 x 1.27 cm; 100 g |
| UPC | 793118392197 |

## Product Details

- **Brand:** Valefod
- **Current rating:** 2 Amps, 3 Amps
- **Mounting type:** Rail Mount
- **Power source:** DC Power Supply
- **Product dimensions:** 3.6D x 5.6W x 1.3H centimeters

## Images

![3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display - Image 1](https://m.media-amazon.com/images/I/81Zv4zrbAFS.jpg)

## Customer Reviews

### ⭐⭐⭐ Review
*by N***I on 20 April 2025*

ليس كام في الاعلان، جاء بزر واحد فقط. لكن يعمل بشكل جيد حتى الآن

### ⭐⭐⭐⭐⭐ Review
*by D***A on 11 January 2022*

I bought these for my "build a lifesize working R2-D2 robot project". They work extremely well taking a 24VDC input from two scooter batteries and regulating it down to 12VDC and another one I use for 5VDC. They are incredibly compact by design and super easy to hook up and adjust the output voltage to your needs. I tested them with my multimeters and the regulated output voltage matched the onboard display readout perfectly. A GREAT product that I will definitely buy again should the need arise... like building an R5-D4 next....hmmmm anyway. It's a super product at a great price. I bought a package of 3 and all worked perfectly!

### ⭐⭐⭐⭐ Review
*by D***K on 7 August 2025*

Work well but had a fault with one unit. They asked me to send it back for a replacement, not worth the effort.

## Frequently Bought Together

- Valefod 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display
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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-21*