CKITZE BA-4 Grounded European German Schuko Power Plug Adapter Adaptor - American USA to German, France, Russia & more - Excellent Quality&nbsp;, Black or White This will not convert the voltage from 220V to 110V. 5mm diameter Grounded Adapter Plug. Will not work in Great Britain, Ireland and Switzerland. This will not convert the voltage from 220V to 110V. NOTE: This is just a plug adapter and changes the prongs to round pins for European outlets