You Do Need power plug adapter while traveling from Togo to Pitcairn Islands.

Here is Why You Need An Adapter

The outlet and plug type used in Pitcairn Islands is I and in Togo is C. This is how they look like.

Togo

In Togo, outlets of type C are in use.

Type C

Pitcairn Islands

In Pitcairn Islands, outlets of type I are in use.

Type I