The Commonwealth of Dominica, not to be confused with the Dominican Republic, is an island country in the Caribbean Sea. It was named by Christopher Columbus.
Are you planning a trip there? Isolated islands of great interest to many scientists, but you may just want to experience the rich culture, the warm climate, or the unique food. But you should know that Dominica uses electrical plugs that are probably shaped differently from the ones you are used to in the United States. You might be planning to bring some of your electronics to Dominica , but American-style plugs are not used at all in Dominica . There are six different types of plugs that are used around the world, and most countries outside North and South America use the common three-cylindrical-pronged design. Dominica uses this model, but also a two-prong design. But you do not need to buy new electronics in Dominica in order to use any electronics there. You simply need plug adapters. Purchase both types that you will need in Dominica , and be sure to buy the correct kind, keeping in mind there are six total plug types, and Dominica only uses two.
Most places outside of North America also use a higher voltage current. 110v is the voltage used by North America and most of Central and South America. However, in most other continents, 220v is used. In countries where 220v is used, it is important to bring a voltage converter that has a 25% higher wattage rating than the appliance you are using it for. In Dominica , the voltage used is 220v, the most commonly used voltage. So if you are going to Dominica , be sure to also get a voltage converter. This does not apply if you are bringing dual-voltage appliances. However, single-volt appliances will need a voltage converter. The wattage should be indicated on the indication panel of the devices. If not, multiply the voltage by the amp. Then you can buy the correct voltage converters for your selected appliances.

Dominica plug adapter
Dominica voltage converter