The table below summarises the plug types, voltage and frequency of electrical current in both Tonga and Samoa.
| Tonga | Samoa | |
|---|---|---|
| Plug Types | I | I |
| Voltage | 240V | 230V |
| Frequency of electrical current | 50Hz | 50Hz |
Tonga uses Plug Type I.
No adaptor needed
Samoa uses Socket Type I, which is the same as the plug type of your appliances from Tonga. You will not need an adaptor.
The voltages found in Tonga (240V) and Samoa (230V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Tonga and Samoa is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.