Don’t require power plug adapter while traveling from Poland to Czech Republic.

Here's why you do not need an adapter

The outlet and plug type used in Czech Republic are C and E and in Poland are C and E and they are compatible with each other.

Poland

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

Type C

Type E

Czech Republic

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

Type C

Type E