Which plug adaptor do I need when travelling from Bermuda to Guam?

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Summary

The table below summarises the plug types, voltage and frequency of electrical current in both Bermuda and Guam.

BermudaGuam
Plug TypesA, BA, B
Voltage120V110V
Frequency of electrical current60Hz60Hz

Plug Adaptors

In Bermuda there's more than one plug type in use.

What type of plug does your appliance have?

Your Appliance has Plug Type A

In Guam there's more than one socket type in use.

You will need this adaptor:

Socket Type A
(Bermuda)
to Plug Type B
(Guam)

Guam also uses Socket Type A, which is used in Bermuda. If using an appliance that has a Type A Plug in the Type A Sockets of Guam, you will not need an adaptor.

Your Appliance has Plug Type B

In Guam there's more than one socket type in use.

You will need this adaptor:

Socket Type B
(Bermuda)
to Plug Type A
(Guam)

Guam also uses Socket Type B, which is used in Bermuda. If using an appliance that has a Type B Plug in the Type B Sockets of Guam, you will not need an adaptor.

Considerations

Voltage

The voltages found in Bermuda (120V) and Guam (110V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.

Good to know

Frequency of Electrical Current

The frequency found in Bermuda and Guam is exactly the same (60Hz). Timing devices and appliances that use motors will function as expected under this frequency.

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