You Do Need power plug adapter while traveling from New Caledonia to El Salvador.

Here is Why You Need An Adapter

The outlet and plug type used in El Salvador are A and B 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 El Salvador, outlets of type A and B are in use.

Type A

Type B

I am from

going to