The Type B 3 plug adapter can be used in the following countries: American Samoa, Antigua & Barbuda, Aruba, Bahamas, Barbados, Belize, Bermuda, Brazil, Canada, Cayman Islands, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guam, Guatemala, Haiti, Honduras, Jamaica, Japan, Liberia, Mexico, Micronesia, Monserrat, Nicaragua, Okinawa, Panama, Peru, Philippines, Puerto Rico, Saint Kitts & Nevis, Tahiti, Taiwan, Thailand, Trinidad and Tobago, USA, Venezuela, Virgin Islands (Exceptions may occur). The input is a universal receptacle that accepts all types of connectors (Including: 2-Prong US "polarized", 3-Prong US grounded, European, UK, AUS and India plug standards. But not the large South African plug). This type B 3 plug adapter does not change the Voltage. Please check the voltage standard for the travel destination and use a Voltage converter with the type B 3 plug adapter if needed. (example, Europe use mainly 230 Volts). Many electrical devices such as AC/DC chargers for Laptops, cameras etc. allow a multi range Voltage (110-240 Volts) and eliminate the need of a Voltage converter. Sometimes electrical device have a switch for either 120 or 230 Volts (remember to set back!). Please check the specifications on your equipment. Powering a 120 Volts device with 230 Volts can destroy the equipment and cause fire.