You Do Need power plug adapter while traveling from Christmas Island to United States of America (US) USA.

Here is Why You Need An Adapter

The outlet and plug type used in United States of America (US) USA are A and B 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 United States of America (US) USA, outlets of type A and B are in use.

Type A

Type B

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