Type I plug - powered by World-Electric-Guide.com

Where found:

American Samoa, Argentina*, Australia, China, El Salvador, Fiji, Guatemala, Kiribati, Nauru, New Zealand, Okinawa, Panama, Papua New Guinea, St. Vincent, Tajikistan, Tonga, Uruguay* .

* In Argentina and Uruguay, the neutral and active wires are reversed from what is used in other countries.  Click here for more.