You Do Need power plug adapter while traveling from Czech Republic to Sierra Leone.

Here is Why You Need An Adapter

The outlet and plug type used in Sierra Leone are D and G and in Czech Republic are C and E. This is how they look like.

In Czech Republic, outlets of type C and E are in use.

Type C

Type E

In Sierra Leone, outlets of type D and G are in use.

Type D

Type G

I am from

going to