You're going to travel to Poland and you don't know if your electric devices (your computer, mobile phone, battery charger...) will be able to work there?
To know if you need a travel plug adapter to go to Poland, you have to consider 3 things : the shape of the plugs, the voltage and the frequency of the current delivered by electrical outlets in Poland.
Here are the shape of the sockets in Poland, and the the types of plugs used in Poland :
If none of your usual plug is compatible, you should buy a universal travel adapter to be able to plug your electric devices (please visit our selection on Amazon for details).
Voltage : 230 V
Frequency : 50 Hz