You Do Need power plug adapter while traveling from Ireland (Eire) to Belgium.

Here is Why You Need An Adapter

The outlet and plug type used in Belgium are C and E and in Ireland (Eire) is G. This is how they look like.

In Ireland (Eire), outlets of type G are in use.

Type G

In Belgium, outlets of type C and E are in use.

Type C

Type E

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