Adjustable DC Power Adapter 3V–12V 2A with ON/OFF Switch

Meet your go-to power solution for low-voltage electronics. This adjustable DC power adapter lets you dial in the exact voltage your device needs — anywhere from 3V to 12V — with a maximum output of 2A (24W). Whether you're powering LED strips, routers, small appliances, or hobby electronics, this adapter keeps things running safely and efficiently.

Featuring a convenient built-in ON/OFF switch, you can cut power without unplugging — a small but handy feature that saves wear on your outlets and cables. The standard 5.5mm DC output plug (outer diameter 5.5mm) is compatible with a wide range of devices. Available in 2 color options to match your setup.

Key Features

• Adjustable Output Voltage: 3V, 4.5V, 5V, 6V, 7.5V, 8V, 9V, 10V, 12V — multiple settings to match your device's requirements
• Maximum Output: 2A / 24W for reliable, steady power delivery
• 40VA Transformer Type: Efficient and stable power conversion
• Built-in ON/OFF Switch: Easily cut power without unplugging
• Universal DC Plug: 5.5mm outer diameter output connector fits most low-voltage electronics
• Multi-Color Options: Choose the style that suits your space
• Plug-and-Play: Ready to use right out of the box — no setup required

What Can You Power With It?

This versatile adapter is ideal for:

• LED light strips and lamps
• Routers and modems
• Radios and small audio equipment
• Hobby electronics and DIY projects
• Fans and small DC motors
• Cameras and surveillance equipment

Specifications

For guidance on electrical safety and consumer electronics, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What voltage settings does this adjustable DC power adapter support?

A: This adapter supports multiple selectable output voltages: 3V, 4.5V, 5V, 6V, 7.5V, 8V, 9V, 10V, and 12V. Simply switch to the setting that matches your device's requirements for safe and efficient operation.

Q: What is the DC plug size on this power adapter?

A: The output DC plug has an outer diameter of 5.5mm, which is one of the most common connector sizes for low-voltage electronics, making it compatible with a wide range of devices including routers, LED strips, cameras, and hobby electronics.

Q: What does the ON/OFF switch do on this adapter?

A: The built-in ON/OFF switch allows you to cut power to your device instantly without having to unplug the adapter from the wall. This is convenient for energy saving and reduces wear on both the outlet and the adapter's plug over time.

Q: Is this power adapter suitable for DIY and hobby electronics projects?

A: Yes! With its wide adjustable voltage range (3V–12V) and 2A maximum output, this adapter is a great choice for powering DIY electronics, breadboard projects, small motors, and other low-voltage hobby applications.