Don’t require power plug adapter while traveling from Madagascar to Guinea-Bissau.

Here's why you do not need an adapter

The outlet and plug type used in Guinea-Bissau is C and in Madagascar are C and E and they are compatible with each other.

Madagascar

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

Type C

Type E

Guinea-Bissau

In Guinea-Bissau, outlets of type C are in use.

Type C