

The holes at the tip of the prongs on type A (and B) plugs are there to prevent the plug slipping out from the socket, pretty nifty! The Japanese plug has two identical flat prongs, whereas the US plug has one prong that is slightly larger, it is not a problem to use Japanese plugs in the US, however the opposite doesn’t always work. Power outlet type A has two flat parallel prongs, it is predominantly used in North and central America and Japan. Used North and Central America and Japan (among others)

You can read more about each of them in the article below. Here’s a quick look of the plugs and sockets used around the world. While it doesn’t act as a converter for your power supply, it’s a great value and offers a relatively compact option for those of you looking for an easy solution for international travel. We use and recommend the Universal World Wide Travel Charger Adapter Plug which works worldwide (except in South Africa as explained below). Please read this voltage guide to learn about the difference between travel adapters and converters. This power outlet guide will give you a full breakdown on everything you need to know about plug shapes and sizes for each country around the world and you can find suggested travel gadgets at the end of the post.

However be warned, check the voltage as well, a hairdryer designed for use in North America could cause an involuntary fireworks display if plugged into a European socket. Plug shapes, holes, sizes and sockets vary in different countries, meaning a plug adapter is necessary to ensure your appliances from home can work abroad.
