---
product_id: 23887710
title: "9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186"
brand: "corporate computer"
price: "2268 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Corporate Computer"
url: https://www.desertcart.is/products/23887710-9vdc-1a-arduino-compatible-power-supply-adapter-110v-ac-5
store_origin: IS
region: Iceland
---

# 9V DC regulated output 1A max current capacity 5.5 x 2.1mm center positive plug 9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186

**Brand:** corporate computer
**Price:** 2268 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your innovation with precision and style!

## Quick Answers

- **What is this?** 9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186 by corporate computer
- **How much does it cost?** 2268 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/23887710-9vdc-1a-arduino-compatible-power-supply-adapter-110v-ac-5)

## Best For

- corporate computer enthusiasts

## Why This Product

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

## Key Features

- • **Switch Mode Efficiency:** Advanced switching tech delivers consistent 1A current with minimal heat and energy waste.
- • **Plug & Play Convenience:** Standard 5.5 x 2.1mm center-positive connector fits instantly—no adapters needed.
- • **Reliable 9V Regulated Power:** Stable 9V DC output ensures your Arduino projects run flawlessly without voltage dips.
- • **Compact & Lightweight Design:** Small footprint (3x3x1 in) and just 2.08 oz—ideal for clutter-free workspaces.
- • **Universal Arduino Compatibility:** Perfectly pairs with Arduino Uno, Mega, and MB102 boards for seamless integration.

## Overview

This 9VDC 1A power supply adapter is engineered for Arduino enthusiasts and electronics pros, delivering a regulated 9V output through a standard 5.5 x 2.1mm center-positive plug. Its compact, lightweight design and efficient switch-mode technology ensure reliable, stable power for your projects up to 1000mA, making it the go-to choice for powering Arduino Uno, Mega, and MB102 boards with confidence.

## Description

High quality switching 'wall wart' AC to DC 9V 1000mA wall power supply manufactured specifically for Electronics. The output is Center/Tip positive 5.5mmx2.1mm connector. These are switch mode power supplies which mean the output is regulated to 9V and the capable output current is much higher (1000mA!). For use with Arduino Uno, Mega and MB102 Power supply boards. These will power most projects that don't require more than 1000mA of current. Dimensions: 2.91 in x 1.57 in x 1.06 in (7.40 cm x 4.00 cm x 2.70 cm) Weight: 2.54 oz (72 g),

Review: Great replacement power supply - Ordered to replace a missing power supply for a lightbox, and it works great with no issues.
Review: Comparable with purpose - Compatibility depends on plug diameter, voltage output needed for the intended purpose. Fit my needs.

## Features

- 2-flat-pin plug
- 110V input voltage / 9VDC 1A output voltage
- For use with Arduino Uno, Mega and MB102 Power supply boards
- Connector size: 5.5 x 2.1mm with Center Tip positive, sleeve is negative
- These adapters do not work for guitar pedals or label makers which require negative tip power adapters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018OLREG4 |
| Best Sellers Rank | #53,467 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #187 in Power Converters |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,921) |
| Date First Available | November 28, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Item model number | LJH -186 |
| Manufacturer | Corporate Computer |
| Product Dimensions | 3 x 3 x 1 inches |

## Product Details

- **Amperage:** 1 Amps
- **Brand:** Corporate Computer
- **Color:** Black
- **Compatible Devices:** arduino uno arduino mega
- **Connector Type:** Barrel Connector
- **Included Components:** connector
- **Input Voltage:** 110 Volts
- **Special Feature:** Lightweight Design
- **Total USB Ports:** 1
- **Wattage:** 9 watts

## Images

![9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186 - Image 1](https://m.media-amazon.com/images/I/31cMIPPiSpL.jpg)

## Questions & Answers

**Q: Would this work for a weird sound generator synth manufactured by italian company elettrorama? 300ma-1a center positive 9volt**
A: As long as the specs are similar to the power supplies output it should work fine.

**Q: Why does LED shut off off when plugged into a device**
A: The device is either pulling to much current or the polarity is wrong for you device.

**Q: what products are used for ac/dc adapter model #0901?**
A: wondered about that once too ... 
... quickly realized used with probably a whole bunch known and unknown ... took a learning curve to rephrase the question in my head ... what does the intended device require and does the adapter provide it.  I'm far from knowledgeable with any how this stuff works, let alone  technical stuff ... made it easier for me in general to learn some basics ... 
- the plug type/size and +/- configuration, 
- the volt deliverable, 
- the amp amount deliverable ..  my understanding is that most devices these days only draw I think it is amps as needed so even if the adapter can offer a bit more, typically o.k.
... long short in some instances I found I already have an adapter from something else ... 
devices requiring 110V AC to 9V DC and up to the 1A / became easy ... determining the connector plug became less obvious.
Not a simple answer perhaps sought, but thought I'd share my own journey with such.

**Q: Does the pin/plug actually have the metal ring on the inside circumference of the pin end like shown in the photo or is there two metal prongs inside?**
A: it is as pictured in the photo

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great replacement power supply
*by R***N on September 13, 2025*

Ordered to replace a missing power supply for a lightbox, and it works great with no issues.

### ⭐⭐⭐⭐⭐ Comparable with purpose
*by M***N on December 27, 2025*

Compatibility depends on plug diameter, voltage output needed for the intended purpose. Fit my needs.

### ⭐⭐⭐⭐⭐ Great product and great price
*by M***V on October 17, 2024*

This is a great product and great price.it also has a little red light that tells you it is working.it powers up my stop barking devise.it has been doing a great jod for over 3 years.

## Frequently Bought Together

- 9VDC 1A Arduino Compatible Power Supply Adapter 110V AC 5.5 x 2.1mm Tip Positive Part#LJH -186
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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-22*