You Do Need power plug adapter while traveling from Somaliland to Bonaire.

Here is Why You Need An Adapter

The outlet and plug type used in Bonaire are A and C and in Somaliland is G. This is how they look like.

Somaliland

In Somaliland, outlets of type G are in use.

Type G

Bonaire

In Bonaire, outlets of type A and C are in use.

Type A

Type C