IP44 Splash-Proof Dual Earth 230v 16A Schuko Plug - Can be used in both Austria/German/Spanish and French/Belgian standard socket outlets. These cover most of Europe, although maybe not Italy.

Fused Heavy Duty BS1363/A Permaplug branded 230v 13A 4-Gang socket outlet.

1.5mm sq conductor H07RN-F Rubber cable.