You Do Need power plug adapter while traveling from New Caledonia to Solomon Islands.

Here is Why You Need An Adapter

The outlet and plug type used in Solomon Islands are G and I and in New Caledonia are C and F. This is how they look like.

In New Caledonia, outlets of type C and F are in use.

Type C

Type F

In Solomon Islands, outlets of type G and I are in use.

Type G

Type I

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