[crote]

To a large extent, the 3-plug version with ground is also compatible.

The CEE 7/7 plug works both in the Schuko Type F socket and the French Type E socket. The former covers 30ish countries, the latter covers 5.

The only countries which do not use either E or F are:

- Denmark, which is the only country to use Type K. It (relatively) recently allowed installing E or F sockets too, so K will probably die out over time.

- Italy, which is the only country to use Type L. It is rapidly switching to L+F hybrids, as most devices sold these days are equipped with CEE 7/7

- Ireland, which uses the British plug. As far as I am aware, no intention to change. Doing so would probably start a civil war.

And outside the EU there are the UK and Switzerland.