You Do Need power plug adapter while traveling from New Caledonia to United Kingdom (UK).

Here is Why You Need An Adapter

The outlet and plug type used in United Kingdom (UK) is G 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 United Kingdom (UK), outlets of type G are in use.

Type G

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