---
product_id: 50553021
title: "6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module"
brand: "valefod"
price: "RM95"
currency: MYR
in_stock: true
reviews_count: 13
category: "Valefod"
url: https://www.desertcart.com.my/products/50553021-6-pack-lm2596-dc-to-dc-high-efficiency-voltage-regulator
store_origin: MY
region: Malaysia
---

# 92% max efficiency Adjustable 1.25-30V output Compact 45x23x14mm size 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module

**Brand:** valefod
**Price:** RM95
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects like a pro — precision voltage, zero compromise!

## Quick Answers

- **What is this?** 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module by valefod
- **How much does it cost?** RM95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/50553021-6-pack-lm2596-dc-to-dc-high-efficiency-voltage-regulator)

## 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

- • **Safe & Tested:** Includes short circuit and over-temperature protection, plus 100% factory testing for peace of mind.
- • **Compact & Versatile:** Miniature footprint (45x23x14mm) fits seamlessly into any workspace or project enclosure without bulk.
- • **Robust Build Quality:** 36μ thickened circuit boards and premium solid-state capacitors ensure noise-free, stable power delivery.
- • **Precision Power Control:** Fine-tune output voltage from 1.25V to 30V with a simple screwdriver twist for ultimate DIY customization.
- • **High-Efficiency Performance:** Maximize energy savings with up to 92% conversion efficiency, keeping your projects cool and reliable.

## Overview

The Valefod 6 Pack LM2596 DC-DC Buck Converter modules deliver adjustable 1.25V to 30V output at up to 3A with 92% efficiency. Featuring thickened circuit boards, high-Q inductors, and solid-state capacitors, these compact 45x23x14mm modules provide stable, noise-filtered power ideal for DIY electronics. Each unit includes built-in short circuit and thermal protection, is factory tested, and comes in anti-static packaging — perfect for professional-grade power supply customization.

## Description

Features: - DC to 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 2.5A (or 10W) and use a heat sink when for a long time working4. The factory settings stay a high voltage, you may need to contrarotate the screw on blue potentiometer about 7-15 circles before the output voltage changes Specifications: - Type: DC-DC buck converter - Input voltage: DC 3.2V - 35V - Output Voltage: DC 1.25V - 30V (adjustable) - Output Current: 3A (max.) - Output Power: 15W (max.) - Conversion Efficiency: 92% (max.) - Switching Frequency : 65KHz - Rectification: non-synchronous rectification - Module property: non-isolated buck module - Operating Temperature: -45℃ to +85℃ - Load Regulation: ± 0.5% - Voltage Regulation: ± 2.5% - Size(L x W x H): 45*23*14mm / 1.77*0.91*0.55inch - Weight: 14g Package List: 6x DC to DC Buck Converter Module

Review: Nice little adjustable voltage regulator - So far, so good. I bought a six pack of these voltage regulators. The first one I hooked up I messed up and reversed the input voltage. This immediately smoked the regulator; so beware that there is no reverse voltage protection on the input. This was completely my mistake, and not an issue with the product. I hooked the second voltage regulator up to my test setup, and it worked great. I used a 32VDC power supply salvaged from an old HP printer as the input supply. I tested the output with a high power 2kohm resistor. I was able to adjust the output voltage to a steady 12.00 volts according to my digital multimeter. The input voltage remained approximately the same as before I connected the output load. Then I switched the load to a small DC motor with a gear train attached. The voltage output remained very stable at +/- 0.01 volts from the 12.00 volts I had set with the resister test. Overall I'd say these are inexpensive and very nice little voltage regulators, and a good value for the money. I intend to add a little voltage meter and build a little benchtop power supply with this one.
Review: Great Quality, Works Well - These work great and I'll probably buy more eventually for other DIY projects

## 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 3.2V to 35V (input voltage must be 1.5V higher than the output voltage, no boost).
- 【Output Voltage】DC 1.25V to 30V voltage is continuously adjustable, maximum output current is 3A.
- 【Mini Size】45 * 23 * 14 mm (with potentiometer). 6pcs 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 | B076H3XHXP |
| Best Sellers Rank | #87,369 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #310 in Power Converters |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,184) |
| Date First Available | October 16, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.494 ounces |
| Item model number | VA-HW-411 |
| Manufacturer | Valefod |
| Manufacturer Part Number | VA-139-52 |
| Product Dimensions | 0.9 x 1.77 x 0.55 inches |
| UPC | 889328049201 |

## Product Details

- **Brand:** Valefod
- **Current Rating:** 2.5 Amps, 3 Amps
- **Item Weight:** 14 Grams
- **Power Source:** Battery Powered
- **Product Dimensions:** 0.9"D x 1.77"W x 0.55"H

## Images

![6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module - Image 1](https://m.media-amazon.com/images/I/71lLCBgYohL.jpg)

## Questions & Answers

**Q: Is the output a percentage of the input, or a constant?  If I have 20 v in, adjust to 5v out;  input goes to 30v will output be 5v or 7.5v?**
A: Output voltage is set by the variable resistor and stays independent of the input voltage (
as long as the input voltage stays a few volts above the output voltage). If the input voltage dips, the output voltage will also dip.

**Q: What are the dimensions of this voltage regulator?**
A: 43 x 21 x 12 mm using caliper on actual product.

**Q: Is there any datasheet / CAD model that shows mounting hole dimensions and location of the mounting holes?**
A: None I know of just trace it out with standoff mounted in your project case and use dremel dril bit kit according to thread hole size. 
Good-luck.

**Q: Does anyone have the dimensions of mounting holes, and voltage input/output locations?**
A: Mounting holes will work with standoff kits on amazon nylon or etal with screws .
The pcb in maked vcc in- + and output -  & +.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice little adjustable voltage regulator
*by A***A on March 21, 2023*

So far, so good. I bought a six pack of these voltage regulators. The first one I hooked up I messed up and reversed the input voltage. This immediately smoked the regulator; so beware that there is no reverse voltage protection on the input. This was completely my mistake, and not an issue with the product. I hooked the second voltage regulator up to my test setup, and it worked great. I used a 32VDC power supply salvaged from an old HP printer as the input supply. I tested the output with a high power 2kohm resistor. I was able to adjust the output voltage to a steady 12.00 volts according to my digital multimeter. The input voltage remained approximately the same as before I connected the output load. Then I switched the load to a small DC motor with a gear train attached. The voltage output remained very stable at +/- 0.01 volts from the 12.00 volts I had set with the resister test. Overall I'd say these are inexpensive and very nice little voltage regulators, and a good value for the money. I intend to add a little voltage meter and build a little benchtop power supply with this one.

### ⭐⭐⭐⭐⭐ Great Quality, Works Well
*by A***R on August 15, 2025*

These work great and I'll probably buy more eventually for other DIY projects

### ⭐⭐⭐⭐ Useful, but expect a dud or two...
*by D***. on July 27, 2022*

I purchased this 10-pack of Valefod 10 Pack DC to DC High Efficiency Voltage Regulator 3.0-40V to 1.5-35V Buck Converter to use in converting emergency light / exit signs to use low voltage DC. The converters do what they are supposed to, largely. They are easy to use - power in, power out - not much more to it than that. They are compact. Voltage stays where you set it and doesn't drift (except when overloaded, of course). With 12 V input well regulated, output voltage stayed fairly constant from no load to a 500 mA test load - within 40 mV of the 5.4 V output to which I had set it. One drawback, and as mentioned by others, is a relatively high defect rate, that is, in my very limited sample of just 10 pieces. One of 10 was defective - the output voltage stayed same as the input voltage no matter the setting of the buck module's adjustment pot. A moment's inspection revealed that one pin of the LM2596 switching regulator chip was bent and touching an adjacent pin, creating a solder bridge. In less time than it took to write this review, I warmed the soldering iron and fixed it. Efficiency of these buckers (Valefod) isn't quite as high as I would have expected. At 12 V in and 5.4 V out, with 200 mA load, I measured 125 mA at the input for an efficiency of about 72% - the buck module was slightly warm to the touch. Perhaps the effciency would be better at greater load. However, it still easily beats an LM317 or other linear regulator. Regarding RFI generation by these Valefod buck modules, there are essentially no measures incorporated in the module's design to suppress same. There is just an electrolytic on the input and another on the output. However, with 2 of these buckers running, fed by 12 V through about 200 ft. of twisted bell wire, and each in turn feeding its 200 mA load through about 2 ft. of same twisted bell wire, interference was inaudible. This was checked using an on-premises HF radio transceiver on the 80, 60, and 40 meter bands and with a crummy end-fed antenna which invariably gets noise from being inevitably coupled to the AC power lines via power line ground. If I put a finger on one of the bucker's input leads or output leads, then RFI became audible but not strong. If your application demands low RFI and your setup is not at least somewhat balanced with respect to ground as was mine, then you may need to add some bypass caps and series chokes.

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-01-26*