The table below summarises the plug types, voltage and frequency of electrical current in both Dominican Republic and Guam.
| Dominican Republic | Guam | |
|---|---|---|
| Plug Types | A | A, B |
| Voltage | 110V | 110V |
| Frequency of electrical current | 60Hz | 60Hz |
Dominican Republic uses Plug Type A.
In Guam there's more than one socket type in use.
You will need this adaptor:
Socket Type
(Dominican Republic) to Plug Type B
(Guam)
Guam also uses Socket Type A, which is used in Dominican Republic. If using an appliance that has a Type A Plug in the Type A Sockets of Guam, you will not need an adaptor.
The voltage found in Dominican Republic and Guam is exactly the same (110V). You will not need a transformer.
The frequency found in Dominican Republic and Guam is exactly the same (60Hz). Timing devices and appliances that use motors will function as expected under this frequency.