You Do Need power plug adapter while traveling from Gaza Strip 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 Gaza Strip are C and H. This is how they look like.

Gaza Strip

In Gaza Strip, outlets of type C and H are in use.

Type C

Type H

Equatorial Guinea

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

Type C

Type E