---
product_id: 55061620
title: "WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply"
brand: "weike"
price: "¥5830"
currency: JPY
in_stock: true
category: "Electronics"
url: https://www.desertcart.jp/products/55061620-weike-auto-dc-boost-buck-converter-5a-automatic-high-current
store_origin: JP
region: Japan
---

# WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply

**Brand:** weike
**Price:** ¥5830
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply by weike
- **How much does it cost?** ¥5830 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/55061620-weike-auto-dc-boost-buck-converter-5a-automatic-high-current)

## Best For

- weike enthusiasts

## Why This Product

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

## Description

Feature:  Module Name: 70W Adjustable Automatic Buck Module Input voltage: 7-40V Output voltage: 0.5-40V adjustable (the default output 12V) Input current: 8A (MAX) Quiescent current: 10mA Output current: 5A (MAX) when the current reaches 3A and long working hours, please install a fan to dissipate heat Output power: natural cooling power within 60W, to enhance heat dissipation up to 70-80W Operating temperature: 0 to +85 degrees Operating frequency: 110KHz Conversion efficiency: up to 90% (efficiency and input and output voltage, current, pressure related) Short circuit protection: There are Reverse polarity protection:yes Wiring: high current terminals, not need solderless, IN + positive input, IN- negative input, OUT + output positive, OUT- output negative Aluminum housing Dimensions: 70 x 39 x 31mm Package includes: 1 x Automatic Buck Converter

## Features

- 70W DC-DC buck automatic power module.
- 7-40V wide voltage input, 0.5-40V stepless adjustable output.
- Perfect circuit design, high efficiency, low ripple.

## Images

![WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply - Image 1](https://images-na.ssl-images-amazon.com/images/I/41U6dtDu1HL.jpg)
![WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply - Image 2](https://images-na.ssl-images-amazon.com/images/I/41lI33ZxUdL.jpg)
![WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply - Image 3](https://images-na.ssl-images-amazon.com/images/I/41V54E9gPiL.jpg)
![WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply - Image 4](https://images-na.ssl-images-amazon.com/images/I/41lK57XcetL.jpg)
![WEIKE Auto DC Boost Buck Converter 5A automatic high-current step-down DC 0.5-40V Car Auto Power Supply - Image 5](https://images-na.ssl-images-amazon.com/images/I/41oCW7ptAtL.jpg)

---

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**Shop now:** [https://www.desertcart.jp/products/55061620-weike-auto-dc-boost-buck-converter-5a-automatic-high-current](https://www.desertcart.jp/products/55061620-weike-auto-dc-boost-buck-converter-5a-automatic-high-current)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-06*