You Do Need power plug adapter while traveling from Faroe Islands to Cuba.

Here is Why You Need An Adapter

The outlet and plug type used in Cuba are A, B, C and L and in Faroe Islands are C, E, F and K. This is how they look like.

Faroe Islands

In Faroe Islands, outlets of type C, E, F and K are in use.

Type C

Type E

Type F

Type K

Cuba

In Cuba, outlets of type A, B, C and L are in use.

Type A

Type B

Type C

Type L