The table below summarises the plug types, voltage and frequency of electrical current in both Brunei and Tonga.
|Frequency of electrical current||50Hz||50Hz|
Brunei uses Plug Type G.
You will need this adaptor:
Socket Type G
(Brunei) to Plug Type I
The voltage found in Brunei and Tonga is exactly the same (240V). You will not need a transformer.
The frequency found in Brunei and Tonga is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.