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