Dual voltage devices can work anywhere in the world with just a plug adapter. Here's how to identify them and use them safely abroad.
What is Dual Voltage?
A dual voltage device has a built-in converter that automatically adjusts to different electrical standards. These devices accept any voltage from 100V to 240V.
When you see "INPUT: 100-240V, 50/60Hz" on a device, it means it works anywhere in the world - you just need the right plug adapter.
Where to Find the Voltage Information
Check these locations on your device:
- Power adapter/charger: Look at the small text on the charging brick
- Device itself: Check near the power input or on the bottom
- User manual: The specifications section lists voltage requirements
- Manufacturer's website: Product specifications page
Common Dual Voltage Devices
Typically NOT Dual Voltage
Devices with Voltage Switches
Some older devices have a physical switch to toggle between 120V and 220V:
Important: If your device has a voltage switch, you MUST set it to the correct voltage BEFORE plugging it in. Forgetting to switch can destroy the device.
Most modern dual voltage devices switch automatically and don't have a manual switch.
Tips for Travelers
- Check voltage ratings before you travel, not at the airport
- Take photos of the voltage labels on your devices for reference
- When in doubt, don't plug it in - the cost of replacement isn't worth the risk
- USB-powered devices are always safe - USB is standardized at 5V worldwide