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

Here is Why You Need An Adapter

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

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

Type G

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

Type C

Type E

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