This adapter will let you plug into a US 2-prong power adapter in the following locations:Bahrain, Bangladesh, Belize, Bhutan, Channel Islands, China, Cyprus, Dominica, Falkland Islands, Gambia, Ghana, Gibraltar, Grenada, Guatemala, Guyana, Hong Kong, Indonesia, Iraq, Ireland, Isle of Man, Jordan, Kenya, Kuwait, Lebanon, Macau, Malawi, Malaysia, Maldives, Malta, Mauritius, Myanmar, Nigeria, Oman, Qatar, St. Kitts and Nevis, St. Lucia, St. Vincent, Saudi Arabia, Seychelles, Sierra Leone, Singapore, Tanzania, Uganda, United Arab Emirates, United Kingdom, Vietnam, Yemen, Zambia, ZimbabweCompatible with all the power adapters Adafruit carries as all are 110-240V compatible!