Which plug adaptor do I need when travelling from Jamaica to Dominican Republic?

Summary

The table below summarises the plug types, voltage and frequency of electrical current in both Jamaica and Dominican Republic.

	Jamaica	Dominican Republic
Plug Types	A, B	A
Voltage	110V	110V
Frequency of electrical current	50Hz	60Hz

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

What type of plug does your appliance have?

No adaptor needed

Dominican Republic uses Socket Type A, which is the same as the plug type of your appliances from Jamaica. You will not need an adaptor.

You will need this adaptor:

Socket Type
(Jamaica) to Plug Type A
(Dominican Republic)

The frequency of electrical current found in Jamaica (50Hz) differs to that found in Dominican Republic (60Hz).

Most equipment is not affected by differences in frequencies. Some exceptions are:

Electric clocks: Some electric clocks use the frequency of electrical current to measure time. If the clock is designed for one frequency, but used with another, time shifts could be experienced.
Appliances using motors: If there is a motor load associated with an appliance, the frequency governs the speed in revolutions of the motor. This could mean that the motor will spin faster, or slower than intended and could have a detrimental effect in the appliance's operation. This is of particular concern in power tools and other machinery that uses motors, so if you must use these, you should seek access to a frequency converter.

The voltage found in Jamaica and Dominican Republic is exactly the same (110V). You will not need a transformer.