Electricity
The electrical supply in Ireland is 230 volts and 240 volts in Northern Ireland. Plugs are mostly three-pronged, the same as those used in the United Kingdom. If your appliances operate on a different current (such as those from North America) you will need a power converter and plug adapter.
Converters can be purchased at travel stores, some discount stores, office supply stores, and electronics stores. Make sure that you select a converter that will accommodate the wattage of the appliances you wish to operate. Some laptop computers, electric razors and hair dryers have built-in power converters. However, an adapter plug will be required.