You Do Need power plug adapter while traveling from Christmas Island to Saint Barthélemy.

Here is Why You Need An Adapter

The outlet and plug type used in Saint Barthélemy are C and E and in Christmas Island is I. This is how they look like.

In Christmas Island, outlets of type I are in use.

Type I

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

Type C

Type E

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