You Do Need power plug adapter while traveling from Equatorial Guinea to Abu Dhabi.

Here is Why You Need An Adapter

The outlet and plug type used in Abu Dhabi is G and in Equatorial Guinea are C and E. This is how they look like.

Equatorial Guinea

In Equatorial Guinea, outlets of type C and E are in use.

Type C

Type E

Abu Dhabi

In Abu Dhabi, outlets of type G are in use.

Type G