---
product_id: 157140866
title: "Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A"
brand: "mucjun"
price: "FREE"
currency: EUR
in_stock: false
category: "Hi"
url: https://www.desertcart.be/products/157140866-mucjun-dc-dc-4-5-40v-step-down-led-volt
store_origin: BE
region: Belgium
---

# Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A

**Brand:** mucjun
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A by mucjun
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/157140866-mucjun-dc-dc-4-5-40v-step-down-led-volt)

## Best For

- mucjun enthusiasts

## Why This Product

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

## Description

Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2AName: Step down voltmeter moduleInput voltage: DC 4.5 ~ 40V.Output voltage: 5V (when the input voltage is between 6.5V ~ 40V).Output current: 2A.Application: can be used on car, electric bike, motorcycle for voltage measurement and to charge phone, , Mp3 etc.Size: approx 5.7cm x 2cm x 1cm(LxWxH)Color: blueMaterial: PC+ metalInstructions: When you need to charge the mobile phone, , MP3 and other digital products, touching the "output enable" button, then the USB power indicator light on, the USB output voltage 5V ; When you need to turn off the digital tube, touching the "low power" button, then the module into the ultra-low power standby mode, USB output is also turned off accordingly.Package Included: 1 x Step down voltmeter moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

## Features

- With overheat protection and short circuit protection.
- With USB power indicator light.
- The voltmeter has automatic calibration function.
- With reverse connection protection.
- High efficiency and low ripple.
- ›See more product details

## Images

![Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A - Image 1](https://images-na.ssl-images-amazon.com/images/I/41jdIJ6VPmL.jpg)
![Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A - Image 2](https://images-na.ssl-images-amazon.com/images/I/61VdPemfbnL.jpg)
![Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A - Image 3](https://images-na.ssl-images-amazon.com/images/I/61D4IWrFwgL.jpg)
![Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A - Image 4](https://images-na.ssl-images-amazon.com/images/I/41JMjhWTO4L.jpg)
![Mucjun DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A - Image 5](https://images-na.ssl-images-amazon.com/images/I/61BBkJgPSxL.jpg)

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**Shop now:** [https://www.desertcart.be/products/157140866-mucjun-dc-dc-4-5-40v-step-down-led-volt](https://www.desertcart.be/products/157140866-mucjun-dc-dc-4-5-40v-step-down-led-volt)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-17*