旅行者のための電気ガイド

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Adapter vs Converter: What's the Difference? A plug adapter changes the shape of your plug so it fits a foreign socket; a vol… What Does "100–240V" Mean? (Dual Voltage Explained) "100–240V" means your device is dual voltage: it works on any grid in the world … What Happens If You Plug 110V Into 220V? A 110–120V-only device plugged into 220–240V receives roughly double the voltage… Step-Up vs Step-Down Converters A step-down converter lowers high voltage (e.g. 230V → 120V) for a low-voltage d… What Wattage Converter Do I Need? Choose a converter rated for at least 25–30% more watts than your device draws —… Brazil: 127V or 220V? Brazil has no single national voltage — most of the south and southeast (São Pau… Are All USB Chargers Dual Voltage? Almost all modern USB and USB-C chargers are dual voltage (100–240V) and work wo… Where Is My Device's Voltage Label? Look on the underside of the device, on the power plug itself, or on the charger… Do You Need a Universal Travel Adapter? A universal travel adapter is worth it if you visit several plug regions, but it… Plug Types by Country (A–N Guide) There are 14 common plug types (A–O). North America and Japan use Type A/B; most…