---
product_id: 503617008
title: "PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell"
brand: "pemenol"
price: "¥9169"
currency: JPY
in_stock: true
reviews_count: 5
category: "Pemenol"
url: https://www.desertcart.jp/products/503617008-pemenol-15w-dc-dc-buck-boost-voltage-converter-5v-to
store_origin: JP
region: Japan
---

# 15W max power output 0.5-30V adjustable voltage range Multi-layer safety protections PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell

**Brand:** pemenol
**Price:** ¥9169
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with precision and confidence — never settle for less!

## Quick Answers

- **What is this?** PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell by pemenol
- **How much does it cost?** ¥9169 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/503617008-pemenol-15w-dc-dc-buck-boost-voltage-converter-5v-to)

## Best For

- pemenol enthusiasts

## Why This Product

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

## Key Features

- • **Robust Safety Suite:** Built-in short-circuit, over-current, over-voltage, over-temperature, and anti-backflow protections keep your devices safe.
- • **Versatile Application:** Ideal for powering LED drivers, battery chargers, test instruments, and DIY electronics projects.
- • **Precision Power Control:** Dial in any voltage from 0.5V to 30V with 0.1V resolution for ultimate customization.
- • **Compact & Durable Design:** Sleek shell with a clear 4-digit LED display fits perfectly on your desk or project setup.
- • **Triple Input Flexibility:** Supports USB Type-A, Micro USB, and direct pad input (4-13V) to fit all your power sourcing needs.

## Overview

The PEMENOL 15W DC-DC Buck Boost Converter is a compact, adjustable power supply module delivering 0.5V to 30V output at up to 2A. Featuring triple input modes (USB-A, Micro USB, and direct pads), a high-resolution LED display, and comprehensive safety protections, it’s engineered for versatile use in charging, LED driving, and electronic testing. Its robust design and precise control make it a must-have for professionals and makers seeking reliable, customizable power solutions.

## Description

The device is a constant voltage, constant voltage DC power supply module with digital LED tube display. It can be used as a normal power supply module, charger and LED constant current driver. Properties and protective function ◆ Set constant voltage ◆ 4-bit tube display ◆ Three input modes ◆ Charging mode ◆ High resolution ◆ Comfortable outer shell ◆ Several parameters can be displayed ◆ Circuit protection ◆ Anti-backflow protection ◆ Overcurrent protection ◆ Overvoltage protection ◆ Overcurrent protection ◆ Overtemperature protection Parameter Input voltage for pads: DC 4.0V-13.0V Input voltage for USB: DC 5.0V Output voltage: DC 0.5V - 30.0V Output current: 2A Output power: 15W (max.) Accuracy of the voltage display: +/- 0.1V Resolution of the voltage display: 0.1V Current display range: 0 ~ 2.2A Current display accuracy: +/- 0.05Av Resolution of the voltage display: 0.001A Power display range: 0 ~ 99.99 Ah Capacity accuracy: 0.00W ~ 15.0W Protection temperature threshold: 100 Conversion efficiency: 95% Working current: 30mA Working temperature range: -20 ℃ ~ 85 ℃ Working humidity range: 0% -95% RH Size: 84 * 35 * 24mm Application ◆ Ordinary power supply ◆ Charger ◆ LED drive power ◆ Instrument voltage display ◆ Test meter ◆ Circuit test ◆ Power conversion Package 1 x USB 2A Power Supply Module (Up / Down)

Review: Used to power a 7" plasma ball for a wizard staff project. Provides plenty of power. The adjustability is great, but the mode select is... not.
Review: It can adjust the voltage between 0.5V and 30V from a 5V USB-A input. Has constant voltage or constant current mode. It comes not assembled, not sure why maybe due to low demand but fairly easy to put together.

## Features

- ★The Output Voltage Can Be Adjusted Arbitrarily: The Adjustable USB Step Up Down Power Supply Module used as a USB input adjustable desktop power supply, the output voltage can be adjusted arbitrarily, and the current limit is 0-2A (wide input 4-13V, wide output 0.5-30V arbitrarily adjusted, with short circuit protection, the short circuit does not burn)
- ★Safe to Use: Used as a USB charging cable, the charging voltage and maximum charging current can be adjusted arbitrarily (any voltage, with constant current, anti-backflow, which can meet the charging of most batteries)
- ★Three Input Power Modes: Input 1: Standard Type A USB Male. It just can input DC 5V. Input 2: Micro USB Female. It just can input DC 5V. Input 3: IN+ and IN- welding pads. It can input DC 4.0V-13.0V. When using the welding pad to input, be careful not to connect the reversed positive and negative poles, and do not connect to AC power
- ★Multiple Protection Functions: short-circuit, over-current, over-temperature, over-power, over-voltage protection, charging anti-backflow protection
- ★Wide Application: It is widely used in ordinary power supply, battery charger, LED driving power, instrument voltage display, test counter, circuit test, power conversion. For more details, please read the user manual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07V5FPNNZ |
| Best Sellers Rank | 284,078 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1,593 in Industrial Power Supply |
| Guaranteed software updates until | unknown |
| Item model number | 13452 |
| Manufacturer | PEMENOL |
| Package Dimensions | 12.5 x 6.6 x 3.71 cm; 49.9 g |

## Product Details

- **Brand:** PEMENOL
- **Item weight:** 1.76 Ounces
- **Power source:** Dc Power Supply
- **Specification met:** RoHS
- **UPC:** 608651949350

## Images

![PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell - Image 1](https://m.media-amazon.com/images/I/51MgW9IUFzL.jpg)
![PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell - Image 2](https://m.media-amazon.com/images/I/51iIVgA2RfS.jpg)
![PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell - Image 3](https://m.media-amazon.com/images/I/61RBJwWa5sL.jpg)
![PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell - Image 4](https://m.media-amazon.com/images/I/61SV9mwH17L.jpg)
![PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up/Down Module Adjustable USB Power Supply Module with Shell - Image 5](https://m.media-amazon.com/images/I/61VgxKV4HSS.jpg)

## Questions & Answers

**Q: Can this can take an input of 5v 2.1a and output 30v 2.5a, and is the set output stable?**
A: No, not unless I have overlooked what would be a very valuable feature. 

If we assume 100% efficiency for conversion, 2.1 Amps at 5 Volts would give you only 0.35 Amps at 30 Volts, more realistically it would be much less than that since the conversion will not be 100% efficient
. 
30V * 2.5A= 75 Watts, 5V * 2.1A = 10.5Watts

I hope this helps. Please forgive me if I have misunderstood the question.

**Q: Can one use this to “trickle “ charge a motorcycle battery?**
A: The previous answer is incorrect.  Yes, it absolutely would.  In fact, its current handling capacity (~1A or so) would be more than enough to charge a motorcycle battery (12-24 hours), let alone maintain it.  However, since it isn't programmable, you wouldn't get the benefit of occasional absorption cycles to prevent sulfation.  Nevertheless, you could winter float a 300Ah 8D with this thing with no issues.

**Q: Does the usb in ports support data pass through to the usb out ports?**
A: Not supported, it is a power converter and does not support data communication

**Q: Does this display delivered current in real time?**
A: With multiple sets of fading LEDs, I'm observing about 2 current updates per second

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***. on 8 September 2025*

Used to power a 7" plasma ball for a wizard staff project. Provides plenty of power. The adjustability is great, but the mode select is... not.

### ⭐⭐⭐⭐ Review
*by S***I on 9 January 2025*

It can adjust the voltage between 0.5V and 30V from a 5V USB-A input. Has constant voltage or constant current mode. It comes not assembled, not sure why maybe due to low demand but fairly easy to put together.

### ⭐⭐⭐⭐⭐ Review
*by T***S on 26 August 2019*

This is a great little DC buck power supply. It has many features that are easy to use. It can be used as a meter to test voltages, it can be used as a variable power supply, a constant current battery charger and more. The directions can be downloaded from a link on the Amazon page. It was a little confusing at first as to what they were calling certain things but it dosent take long to figure it out. It has three different inputs: USB, 5 volt micro USB and hardwired. It has short circuit protection, over temperature protection, over current protection. This little variable buck power supply is perfect if you like to tinker with electronics, it is a great item for teaching basics of DC power and current. I would recommend this to anyone and the price is great.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-17*