Mains supply in Montenegro: 230 V, 50 Hz, sockets of Types C and F. A converter can stay at home; Montenegro supplies 230 V.
Handy for multi-stop trips: Austria, Finland, the Netherlands and Greece use the same plug types. Travelling further to Ireland, the United Kingdom and Malta means a different adapter. 31 of the 50 destinations in Europe share the plug types of Montenegro.
Protective earth
Grounded and ungrounded sockets may occur
Montenegro has sockets with a protective earth (Type F) and without (Type C). A plug that fits mechanically does not guarantee earthing.