You Do Need power plug adapter while traveling from Faroe Islands to United Kingdom (UK).

Here is Why You Need An Adapter

The outlet and plug type used in United Kingdom (UK) is G 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

United Kingdom (UK)

In United Kingdom (UK), outlets of type G are in use.

Type G