Before you pack: Bermuda uses Types A and B, 120 V and 60 Hz. 120 V instead of 230 V: check the rating plate before you plug in a hair dryer. An adapter does not change voltage. 60 Hz rather than 50 Hz matters only for motors and timers, not for power supplies.
You will find identical sockets in Canada, Antigua and Barbuda, the Bahamas and Mexico. Nearby but different: Dominica, Saint Lucia and Guadeloupe – an adapter for Bermuda will not fit there. Across North and Central America this setup is common: 24 of 31 countries.
Protective earth
Grounded and ungrounded sockets may occur
Mixed supply: Type A without earth, Type B with earth. Which one is in your room only shows on arrival.
Check the rating plate: 120 V suits “100–240 V” supplies, not single-voltage appliances. Frequency is 60 Hz; timers and simple motors run differently. Check your own device →
Bermuda supplies 120 V. Dual-voltage chargers are fine; 230 V-only appliances need a converter.
An adapter changes the plug shape only, not voltage or frequency. Bermuda supplies 120 V at 60 Hz – check the rating plate on your device. How to read a rating plate →
If a socket gets hot, crackles or smells burnt, unplug the device straight away.