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

Here is Why You Need An Adapter

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

Cayman Islands

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

Type A

Type B

Burkina Faso

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

Type C

Type E