You Do Need power plug adapter while traveling from Ghana to Falkland Islands.

Here is Why You Need An Adapter

The outlet and plug type used in Falkland Islands is G and in Ghana are D and G. This is how they look like.

Ghana

In Ghana, outlets of type D and G are in use.

Type D

Type G

Falkland Islands

In Falkland Islands, outlets of type G are in use.

Type G