You Do Need power plug adapter while traveling from New Caledonia to Czech Republic.

Here is Why You Need An Adapter

The outlet and plug type used in Czech Republic are C and E 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 Czech Republic, outlets of type C and E are in use.

Type C

Type E

I am from

going to