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

Here is Why You Need An Adapter

The outlet and plug type used in Aruba are A, B and F and in Libya are C and L. This is how they look like.

Libya

In Libya, outlets of type C and L are in use.

Type C

Type L

Aruba

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

Type A

Type B

Type F