Plug sockets in Italy - will Irish 3 pin plugs work or do you need an adaptor

Are Italy plug sockets different to Irish

Do plugs on irish electric appliances work in Italy or do you need an adaptor

We're 420 volt and they are 220 volt - right?

Thanks

Voltage is similar enough - we're 220-240V too.

Sockets are different - they've the plugs with round pins, so you'll need a socket adapter at least.

We're both working off baseline of 230V. See here for a country-by-country reference to voltage, frequency and plug/socket types.