The table below summarises the plug types, voltage and frequency of electrical current in both Samoa and Iran.
|Frequency of electrical current||50Hz||50Hz|
Samoa uses Plug Type I.
You will need this adaptor:
Socket Type I
(Samoa) to Plug Type C
The voltage found in Samoa and Iran is exactly the same (230V). You will not need a transformer.
The frequency found in Samoa and Iran is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.