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