The table below summarises the plug types, voltage and frequency of electrical current in both Guinea-Bissau and Iran.
| Guinea-Bissau | Iran | |
|---|---|---|
| Plug Types | C | C |
| Voltage | 220V | 230V |
| Frequency of electrical current | 50Hz | 50Hz |
Guinea-Bissau uses Plug Type C.
No adaptor needed
Iran uses Socket Type C, which is the same as the plug type of your appliances from Guinea-Bissau. You will not need an adaptor.
The voltages found in Guinea-Bissau (220V) and Iran (230V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Guinea-Bissau and Iran is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.