You Do Need power plug adapter while traveling from Guinea-Bissau to Isle of Man.

Here is Why You Need An Adapter

The outlet and plug type used in Isle of Man are C and G and in Guinea-Bissau is C. This is how they look like.

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

Type C

In Isle of Man, outlets of type C and G are in use.

Type C

Type G

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