Your plugs & sockets
Voltage
220V
Frequency
50Hz
Plugs
C
Plugs & sockets in Tonga
Voltage
240V
Frequency
50Hz
Plugs
I
Guinea-Bissau to Tonga: Complete Plug & Adapter Guide (2026) Adapter Needed
Traveling from Guinea-Bissau to Tonga means crossing into a different electrical system. Before you leave, take a moment to understand the plug types and voltage used in Tonga so you can keep all your devices charged and ready.
The plug types are different between these two countries. In Guinea-Bissau, outlets accept Type C, but in Tonga you'll find Type I sockets. A travel plug adapter is essential for this trip.
On the voltage front, Guinea-Bissau (220V, 50Hz) and Tonga (240V, 50Hz) are very similar. You shouldn't need a voltage converter for your electronics.
Most modern phone chargers, laptop adapters, and camera chargers are designed to handle 100-240V input, so they'll work anywhere with just a plug adapter. Heat-producing appliances like hair dryers and flat irons are often single-voltage, so check before you plug them in abroad.
