Compatibility summary
You will need a travel adapter in Falkland Islands; plug types used there differ from Mexico. Voltage differs by more than 20% — a voltage converter may be needed for some appliances.
Plug comparison
Mexico plug types: A B
Falkland Islands plug types: G
There is no common plug type between Mexico (A B) and Falkland Islands (G). You need a travel adapter.
Voltage comparison
Mexico: 127V, 60Hz
Falkland Islands: 240V, 50Hz
Voltage converter recommended (Mexico 127V vs Falkland Islands 240V).