You Do Need power plug adapter while traveling from Uruguay 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 Uruguay are C, F and L. This is how they look like.

Uruguay

In Uruguay, outlets of type C, F and L are in use.

Type C

Type F

Type L

Burkina Faso

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

Type C

Type E