You Do Need power plug adapter while traveling from Argentina 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 Argentina are C and I. This is how they look like.

In Argentina, outlets of type C and I are in use.

Type C

Type I

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

Type G

Type I

I am from

going to