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

Here is Why You Need An Adapter

The outlet and plug type used in Aruba are A, B and F and in Solomon Islands are G and I. This is how they look like.

Solomon Islands

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

Type G

Type I

Aruba

In Aruba, outlets of type A, B and F are in use.

Type A

Type B

Type F