The table below summarises the plug types, voltage and frequency of electrical current in both Guinea-Bissau and St. Vincent (Winward Islands).
| Guinea-Bissau | St. Vincent (Winward Islands) | |
|---|---|---|
| Plug Types | C | A, C, E, G, I, K |
| Voltage | 220V | 230V |
| Frequency of electrical current | 50Hz | 50Hz |
Guinea-Bissau uses Plug Type C.
In St. Vincent (Winward Islands) there's more than one socket type in use. You may require more than one adaptor.
Socket Type C
(Guinea-Bissau) to Plug Type A
(St. Vincent (Winward Islands))
Socket Type C
(Guinea-Bissau) to Plug Type E
(St. Vincent (Winward Islands))
Socket Type C
(Guinea-Bissau) to Plug Type G
(St. Vincent (Winward Islands))
Socket Type C
(Guinea-Bissau) to Plug Type I
(St. Vincent (Winward Islands))
Socket Type C
(Guinea-Bissau) to Plug Type K
(St. Vincent (Winward Islands))
St. Vincent (Winward Islands) also uses Socket Type C, which is used in Guinea-Bissau. If using an appliance that has a Type C Plug in the Type C Sockets of St. Vincent (Winward Islands), you will not need an adaptor.
The voltages found in Guinea-Bissau (220V) and St. Vincent (Winward Islands) (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 St. Vincent (Winward Islands) is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.