---
product_id: 424623235
title: "6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module"
brand: "aitiao"
price: "S$30"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/424623235-6pcs-ac-dc-precision-buck-power-supply-module-12v-400ma
store_origin: SG
region: Singapore
---

# AC 85V-265V Input Isolation Protection -20° to 60° C Range 6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module

**Brand:** aitiao
**Price:** S$30
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Projects with Precision!

## Quick Answers

- **What is this?** 6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module by aitiao
- **How much does it cost?** S$30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/424623235-6pcs-ac-dc-precision-buck-power-supply-module-12v-400ma)

## Best For

- aitiao enthusiasts

## Why This Product

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

## Key Features

- • **📏 Compact Design:** Small footprint with mounting holes for easy installation.
- • **🛡️ Safety First:** Built-in protections against overcurrent, overvoltage, and short circuits.
- • **🌍 Wide Compatibility:** Works seamlessly with various input voltages globally.
- • **🔊 Noise-Free Operation:** EMI filter ensures stable performance without interference.
- • **🔌 Unmatched Versatility:** Perfect for LED lights, instruments, and small appliances.

## Overview

The 6Pcs AC-DC Precision Buck Power Supply Module is a high-performance, isolated step-down converter that efficiently transforms AC input voltages from 85V to 265V into a stable 12V output. Designed for safety and versatility, it features built-in protections and is ideal for a range of applications including LED lighting and small appliances.

## Description

6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module

## Features

- 【Isolation Voltage Module】The Buck Converter's input voltage is AC 85V ~ 265V , and wide 431 precision voltage stability DC 5V output .Input and output are highly isolated.Working temperature is -20 ~ 60° and relative humidity is 40 ~ 90%RH.
- 【High Performance】With mounting holes on four corners to prevent movement vibration cause to product power, small volume, stable performance, high cost-effective,with input and output EMI filter circuit.It's good electrical filtering and almost perfect voltage conversion without noise.
- 【Safety Protection】The power source of this buck converter for the isolation industrial-grade built-in power supply module, supports temperature protection,over current protection,over voltage and short circuit protection.
- 【Wide Application】The step down module is easy to install, can be used directly on the motherboard board.Widely used for LED Light, instrument and meter, small home appliances,etc.
- 【Note】Do not touch the bottom of the template during testing or use, need an insulation pad, and clean up the conductive things on the desktop to prevent the power board is burned.

## Product Details

- **Brand:** AITIAO
- **Color:** Multicolor
- **Input Voltage:** 85 Volts (AC)
- **Output Voltage:** 12 Volts
- **Plug Format:** Type A or Type B

## Images

![6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module - Image 1](https://m.media-amazon.com/images/I/81B55yGPL2L.jpg)
![6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module - Image 2](https://m.media-amazon.com/images/I/71sNJi86etL.jpg)
![6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module - Image 3](https://m.media-amazon.com/images/I/61LANGECf-L.jpg)
![6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module - Image 4](https://m.media-amazon.com/images/I/71-G8s7fb+L.jpg)
![6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module - Image 5](https://m.media-amazon.com/images/I/81nQVJAevvL.jpg)

## Frequently Bought Together

- AITIAO 6Pcs AC-DC Precision Buck Power Supply Module 12V 400mA Isolated Switch Power Supply Buck Converter AC 110V 100V-264V to 12V 400mA Isolated Step Down Module
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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-24*