---
product_id: 8178728
title: "DC-DC Step Down Buck Converter Voltage Regulator Power Supply Transformer | 12-24V to 5V 3A 15W, Over-Current Protection, Thermal Shutdown, Surveillance & Railway Use"
brand: "binzet"
price: "€ 16.97"
currency: EUR
in_stock: true
reviews_count: 13
category: "Binzet"
url: https://www.desertcart.it/products/8178728-dc-dc-step-down-buck-converter-voltage-regulator-power-supply
store_origin: IT
region: Italy
---

# 8V-40V wide input range Stable 5V/3A output power Multi-layer protection system DC-DC Step Down Buck Converter Voltage Regulator Power Supply Transformer | 12-24V to 5V 3A 15W, Over-Current Protection, Thermal Shutdown, Surveillance & Railway Use

**Brand:** binzet
**Price:** € 16.97
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your tech with precision — never settle for unstable voltage again!

## Quick Answers

- **What is this?** DC-DC Step Down Buck Converter Voltage Regulator Power Supply Transformer | 12-24V to 5V 3A 15W, Over-Current Protection, Thermal Shutdown, Surveillance & Railway Use by binzet
- **How much does it cost?** € 16.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/8178728-dc-dc-step-down-buck-converter-voltage-regulator-power-supply)

## Best For

- binzet enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Durable Design:** Lightweight and sleek (2.5 x 0.8 x 2.2 inches), engineered to withstand extreme temperatures and long-term use.
- • **Robust 3A Power Delivery:** Delivers a reliable 5V/3A output ensuring your devices run smoothly without hiccups or power dips.
- • **Wide Voltage Compatibility:** Seamlessly converts unstable 8V-40V DC to a rock-solid 5V output, perfect for diverse automotive and tech setups.
- • **Advanced Safety Protections:** Built-in over-voltage, over-current, thermal shutdown, and short circuit auto-recovery keep your gear safe and sound.
- • **Versatile Application Ready:** Ideal for car audio, dash cams, surveillance, railway signals, medical instruments, and LED systems—future-proof your power needs.

## Overview

The BINZET DC-DC Step Down Buck Converter efficiently transforms a broad 8V-40V DC input into a stable 5V/3A output, featuring comprehensive safety protections and a compact design. Trusted by professionals for automotive, surveillance, and industrial applications, it ensures reliable, long-lasting power delivery with a 2-year manufacturer warranty.

## Description

Buy DC-DC Step Down Buck Converter Voltage Regulator Power Supply Transformer | 12-24V to 5V 3A 15W, Over-Current Protection, Thermal Shutdown, Surveillance & Railway Use: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Car Cam works good now - I would not always remember to plug or unplug the car cam. Now car starts-cams on, remove key-cams off, plus this is much better power supply than the one that came with the car cam. It eliminated 100% of the issues I was having with the cam when using the supplied USB cigarette power supply. It was so bad I was about to order another car cam. Another plus I received an email from Casey from Binzet today saying any problems let him know 24/7. So far Great product at a good price. I would buy again and highly recommend.
Review: Super Reliable - First bought this back in November of 2020 to step down 12V to 5V for a dash cam in a TC vehicle. After heavy use and extreme temperature changes every season, it's still in-service today (3/31/25). Highly recommend. I'm now purchasing another for a project using mostly 12V, it will step down to 5V to power some Arduino-controlled relays.

## Features

- Convert unstable 8V-40V DC power supply into stable 5V 3A DC power output
- Over-voltage, over current, over temperature, short circuit auto protection, and can return to normal conditions in the work
- Essential for car audio system or other 5V car products (particularly useful in vehicles with 24V power supply)
- Input voltage: 12/24V (8V-40V),Output: 5V/3A
- This Voltage regulator widely used in automotive, surveillance systems, railway signals, medical equipment, instruments and meters, LED products, LED strips, cable TV and other low power test systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00J3MHRNO |
| Best Sellers Rank | #87,292 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #332 in Power Converters |
| Brand | BINZET |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 1,188 Reviews |
| Input Voltage | 12 volts |
| Item Dimensions | 2.5 x 0.8 x 2.2 inches |
| Item Weight | 2.4 ounces |
| Item dimensions L x W x H | 2.5 x 0.8 x 2.2 inches |
| Manufacturer | BINZET |
| Mfr Part Number | LTC0389-X |
| Model Number | LTC0389-X |
| Number of Items | 1 |
| Number of Outlets | 1 |
| Output Voltage | 5 volts |
| Plug Type | 2 Pin |
| Unit Count | 1 Count |
| Warranty Description | 2 Year Manufacturer |

## Product Details

- **Brand:** BINZET
- **Color:** Black
- **Input Voltage:** 12 volts
- **Item Weight:** 2.4 ounces
- **Item dimensions L x W x H:** 2.5 x 0.8 x 2.2 inches

## Images

![DC-DC Step Down Buck Converter Voltage Regulator Power Supply Transformer | 12-24V to 5V 3A 15W, Over-Current Protection, Thermal Shutdown, Surveillance & Railway Use - Image 1](https://m.media-amazon.com/images/I/61L+xWE-EAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Car Cam works good now
*by O***L on October 31, 2021*

I would not always remember to plug or unplug the car cam. Now car starts-cams on, remove key-cams off, plus this is much better power supply than the one that came with the car cam. It eliminated 100% of the issues I was having with the cam when using the supplied USB cigarette power supply. It was so bad I was about to order another car cam. Another plus I received an email from Casey from Binzet today saying any problems let him know 24/7. So far Great product at a good price. I would buy again and highly recommend.

### ⭐⭐⭐⭐⭐ Super Reliable
*by D***E on March 31, 2025*

First bought this back in November of 2020 to step down 12V to 5V for a dash cam in a TC vehicle. After heavy use and extreme temperature changes every season, it's still in-service today (3/31/25). Highly recommend. I'm now purchasing another for a project using mostly 12V, it will step down to 5V to power some Arduino-controlled relays.

### ⭐⭐⭐⭐⭐ Hasn't failed me yet near max load, and with abuse!
*by B***. on March 4, 2021*

I must say I am quite impressed with these things. They are very efficient (little to no heat) and have a very stable voltage even with variable and high current. I have the 5v 15A version and am pulling ~13 A from it max right now with no voltage drops from the regulator. And although its only been a few months, I am very impressed. I have given these things more than enough reason to go out on me in this short time, yet they not only continue to work, seemingly unharmed, but even saved everything downstream from them. So what did I do? I used the same type of cable for both my 5v and 20v runs. I....managed to mistakenly plug in 1 end of a 5v light strand into the 20v wire, while the other end was plugged into the 5v. Thus feeding my lights and this regulator's 5v line with 20v. Only the short 1m strip of light between the 20v v+ and 5v+ was harmed, the other 20 meters which were connected to it in the other direction were fine, and didn't even react to the mistake (the 1m I killed went full white due to overvolt). Actually, the last 5 lights of that 1m still work fine (color changing and all), so I think the regulator managed to successfully sink the voltage down to near the 5.24V it normally operates at. I probably hurt their lifetime, but this thing and 100$ worth of lights that should have been instantly fried are still working like a champ! (And I really deserved to have everything fried. I plugged in my miss-wired devices 3 times trying to diagnose the issue. And the last time I removed the fuse I had on the 20v+ and let it run for 5 seconds) If you do notice a voltage drop, ensure it is not due to incorrect wire size by measuring voltage at the regulator. If the regulator is not supplying a steady voltage, you may need to check your power source. Even if your psu is rated for a higher voltage and current than you should need, it might not actually provides both at the same time. If your 20v supply drops to 6v when pulling high current there isn't anything this thing can do. And to any other amateurs considering using multiple of these to power a long light strip, be sure not to connect VCC of your lights to multiple regulators/power supplies. You can plug everything in like normal, but cut the VCC half way between the 2 regulators or power supplies. This will ensure each regulator is actually powering the lights their intended to, and ensures that the some devices will power off if a power supply or regulator dies instead of overworking other power sources. And, additionally, largely reduces the risk from an accidental overvolt.

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-09-11*