Turkey operates on 220 volts, 50 Hz, with round-prong European-style plugs that fit into recessed wall sockets/points. Check your appliances before leaving home to see what you'll need to plug in when you travel in Turkey. Many appliances such as laptop computers and digital cameras with their own power adapters can be plugged into either 120-volt or 220-volt sockets/points and will adapt to the voltage automatically. But you will need a plug adaptor that can fit into the recessed wall socket/point. Read the technical stuff on your power adapter to see "INPUT: A.C. 100-240V". If it reads that way, it can operate on either 120 or 220 voltage. If it says something like "INPUT: 100-125V", then it can't run on Turkey's 220 volts and you'll need to bring a voltage converter.