---
product_id: 641572818
title: "– KWSLIN 30W Reverse Polarity AC Adapter, AC/DC Power Supply, with 9 Pieces Adaptor Tips, Compatible with 3V to 12V Household Electronics, BT Speakers, LCD LED Light Strip Charger, 2Amp Output"
brand: "kwslin"
price: "S$37"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/641572818-kwslin-30w-reverse-polarity-ac-adapter-ac-dc-power-supply
store_origin: SG
region: Singapore
---

# 2A output with adjustable 3-12V voltage Dual polarity for max device compatibility 9 adapter tips for perfect fit – KWSLIN 30W Reverse Polarity AC Adapter, AC/DC Power Supply, with 9 Pieces Adaptor Tips, Compatible with 3V to 12V Household Electronics, BT Speakers, LCD LED Light Strip Charger, 2Amp Output

**Brand:** kwslin
**Price:** S$37
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up smarter, not harder — the only adapter your tech tribe needs!

## Quick Answers

- **What is this?** – KWSLIN 30W Reverse Polarity AC Adapter, AC/DC Power Supply, with 9 Pieces Adaptor Tips, Compatible with 3V to 12V Household Electronics, BT Speakers, LCD LED Light Strip Charger, 2Amp Output by kwslin
- **How much does it cost?** S$37 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/641572818-kwslin-30w-reverse-polarity-ac-adapter-ac-dc-power-supply)

## Best For

- kwslin enthusiasts

## Why This Product

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

## Key Features

- • **Smart Cost Saver:** Replace dozens of original adapters with one versatile, budget-friendly power supply.
- • **Plug & Play Convenience:** Clearly labeled tips and simple voltage adjustment make setup effortless and fast.
- • **Tailored Voltage Control:** Easily switch between 3V to 12V with 9 precision tips and a handy adjustment key.
- • **One Adapter, Many Devices:** Compatible with routers, speakers, LED strips, and more—ditch multiple chargers forever.
- • **Universal Power Flexibility:** Dual polarity design adapts seamlessly to any device's power needs.

## Overview

This 30W AC/DC adapter features a unique dual polarity design and 9 interchangeable tips, delivering adjustable 3V to 12V output at 2A. Compatible with a wide range of household electronics and devices, it offers a versatile, cost-effective power solution that replaces multiple adapters with one sleek, easy-to-use unit.

## Description

30W Reverse Polarity AC Adapter, AC/DC Power Supply, with 9 Pieces Adaptor Tips, Compatible with 3V to 12V Household Electronics, BT Speakers, LCD LED Light Strip Charger, 2Amp Output

## Features

- 🔥【Dual Polarity Design】 The Reverse Polarity Power Adaptor stands out with its unique dual polarity feature, allowing for reversible and changeable polarity. Unlike most adapters with single polarity, this AC Adapter offers the flexibility to adapt to various devices with different polarity requirements.
- 🔥【Adjustable Voltage】 Equipped with 9 changeable adapter plugs and a convenient key for voltage adjustment, this universal adapter allows you to easily set the voltage to fit your specific appliance. The different plug sizes ensure a perfect fit for your devices, solving a variety of power supply problems.
- 🔥【Wide Compatibility】 This power supply is suitable for a wide range of devices, including routers, speakers, monitors, cameras, smartphones, LED strips, pianos, keyboards, effect pedal boards, and various household electronics. It provides DC output options of 3V, 4.5V, 5V, 6V, 7.5V, 9V, and 12V with a 2000mA load, making it versatile for multiple applications.
- 🔥【Cost-Saving Solution】 By owning this AC/ DC adapter, you can use it for multiple devices and replace numerous old power adapters. This not only saves you the cost of buying new electronic devices but also eliminates the need for extra original expensive power supplies, providing a cost-effective solution.
- 🔥【Convenient Package】 The package includes 1 x 3-12V universal adapter, 9 x changeable adapter tips, and 1 x key for voltage adjustment. Each adapter tip is clearly marked with dimensions, ensuring a hassle-free and convenient experience for you.
- 🔥【Versatile Application】 With its reverse polarity feature and wide compatibility, this universal adapter is a versatile solution for your power supply needs. Whether it's for home electronics, musical instruments, or other devices, this adapter offers the flexibility and convenience you need.

## Product Details

- **Brand:** KWSLIN
- **Item weight:** 80 Grams
- **Input voltage:** 12 Volts
- **Item dimensions L x W x H:** 30 x 50 x 70 millimeters
- **UPC:** 765551421376

## Images

![– KWSLIN 30W Reverse Polarity AC Adapter, AC/DC Power Supply, with 9 Pieces Adaptor Tips, Compatible with 3V to 12V Household Electronics, BT Speakers, LCD LED Light Strip Charger, 2Amp Output - Image 1](https://m.media-amazon.com/images/I/6177UwGPChL.jpg)

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**Shop now:** [https://www.desertcart.sg/products/641572818-kwslin-30w-reverse-polarity-ac-adapter-ac-dc-power-supply](https://www.desertcart.sg/products/641572818-kwslin-30w-reverse-polarity-ac-adapter-ac-dc-power-supply)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-24*