Compare the plug shapes, voltage and frequency in Guinea-Bissau and Ireland, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Guinea-Bissau, you will need a travel adapter for Ireland. Guinea-Bissau uses Type C/Type F plugs, and Ireland uses Type G, so the pin shapes will not fit any wall socket.
Guinea-Bissau (home)
Ireland (destination)
Electrical specifications in Ireland
Voltage
Frequency
More about plugs in Ireland
In Ireland, the standard power plug is Type G. The country runs on 230 volts at 50 Hz. That means every wall socket in Ireland is the same shape — Type G, and your plug needs to physically match the socket to fit.
Full Ireland plug guide