Compatibility summary
You will need a travel adapter in Bermuda; plug types used there differ from United Kingdom. Voltage differs by more than 20% — a voltage converter may be needed for some appliances.
Plug comparison
United Kingdom plug types: G
Bermuda plug types: A B
There is no common plug type between United Kingdom (G) and Bermuda (A B). You need a travel adapter.
Voltage comparison
United Kingdom: 230V, 50Hz
Bermuda: 120V, 60Hz
Voltage converter recommended (United Kingdom 230V vs Bermuda 120V).