Don’t require power plug adapter while traveling from Madeira to Guinea.

Here's why you do not need an adapter

The outlet and plug type used in Guinea are C, F and K and in Madeira are C and F and they are compatible with each other.

Madeira

In Madeira, outlets of type C and F are in use.

Type C

Type F

Guinea

In Guinea, outlets of type C, F and K are in use.

Type C

Type F

Type K