You Do Need power plug adapter while traveling from North Korea to Bahamas.

Here is Why You Need An Adapter

The outlet and plug type used in Bahamas are A and B and in North Korea is C. This is how they look like.

North Korea

In North Korea, outlets of type C are in use.

Type C

Bahamas

In Bahamas, outlets of type A and B are in use.

Type A

Type B