You Do Need power plug adapter while traveling from Burkina Faso to Cayman Islands.

Here is Why You Need An Adapter

The outlet and plug type used in Cayman Islands are A and B and in Burkina Faso are C and E. This is how they look like.

Burkina Faso

In Burkina Faso, outlets of type C and E are in use.

Type C

Type E

Cayman Islands

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

Type A

Type B