When you are flying to another country or continent, you might require an ac adapter if you bring electrical items. If you do not have one, the electrical items you may bring will be useless. Why you might ask? Well because every country doesnt have the same electrical outlet. It would be a good idea to know what kind of plug a country uses before going there to visit.
In North, South America, Japan and some of the Caribbean use an ungrounded plug that has two flat prongs or a grounded plug that has an additional third prong. Most of Europe, the Middle East, Asia, Africa and other parts of the Caribbean use a plug with rounded prongs. In order to use a device from another country in an electric outlet you will need an ac adapter.
There are many kinds of power adapters that you might need. Most electrical adapters come in a both grounded and ungrounded versions but some countries only use three pronged plugs so the only travel adapter listed will be a grounded adapter. Australia, New Zealand, Fiji and China use a slanted two prong adapter. Great Britain, Ireland, Africa, Hong Kong and Singapore use a three prong plug, with two flat prongs in line and one...