In the Cook Islands you’ll find some three pronged plugs (same as in Australia and New Zealand), mainly on air-conditioners and power tools. Others are two-prong so, if you require power, invest in an adapter (you can probably buy at the airport). Some resorts have 110v for electric shavers.
In Samoa – Electricity is 240 volt with 3 prong angular plugs (same as Australia and New Zealand).
In Fiji the current is also 240 volts and outlets take three-pins – (as in Australia and New Zealand). Leading hotels and resorts have universal outlets for 240v or 110v appliances, or 110v adapters. Some resorts generate their own electricity and if they kick in and out, bedside digital clocks will need resetting. As nice as ‘island time’ is, it doesn’t apply to missing a flight!
In Vanuatu it is 220-280 volts AC with mainly three-point plugs in hotels (same as Australia & New Zealand). Some places, built by the French, take European two point plugs. If resorts have these, they will have adapters at reception. Adapters can also be bought at Fung Kuei (airport end of town).
Photo: Fung Kuei in Vanuatu from Trip Advisor