Compare the plug shapes, voltage and frequency in United Kingdom and Guinea-Bissau, and find out which adapter you need before you travel.
Adapter required
Yes — coming from United Kingdom, you will need a travel adapter for Guinea-Bissau. United Kingdom uses Type G plugs, and Guinea-Bissau uses Type C/Type F, so the pin shapes will not fit any wall socket.
United Kingdom (home)
Guinea-Bissau (destination)
Electrical specifications in Guinea-Bissau
Voltage
Frequency
More about plugs in Guinea-Bissau
In Guinea-Bissau, the standard power plug is Type C and Type F. The country runs on 230 volts at 50 Hz. That means wall sockets in Guinea-Bissau can be one of 2 different shapes — Type C, Type F, and your plug needs to physically match the socket to fit.
Full Guinea-Bissau plug guide