The electric system is 220 Volt AC, 50Hz. American and European-style rounded and flat pin plugs can be used in sockets. Travellers with shavers, tape recorders and other appliances will require a plug-adapter kit, these can be bought in many supermarkets here on Samui. Power failures are not uncommon on Samui especially during the rainy season; so it’s a good idea to keep a torch handy.