Compatibility summary
You will need a travel adapter in Falkland Islands; plug types used there differ from Sweden.
Plug comparison
Sweden plug types: C F
Falkland Islands plug types: G
There is no common plug type between Sweden (C F) and Falkland Islands (G). You need a travel adapter.
Voltage comparison
Sweden: 230V, 50Hz
Falkland Islands: 240V, 50Hz
Voltage difference is within a range many devices tolerate; check your appliance label.