You Do Need power plug adapter while traveling from Hong Kong 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 Hong Kong is G. This is how they look like.

In Hong Kong, outlets of type G are in use.

Type G

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

Type C

Type G

I am from

going to