Electrical plugs used on Norwegian Cruise Line ships are of two types: the Europlug and the Schuko plug. Europlugs have two round pins, while Schuko plugs have two round pins with two additional grounding clips on the side. Both types of plugs are rated for 220-240 volts and 16 amps, and are compatible with the electrical outlets found on Norwegian Cruise Line ships.
It is important to note that electrical outlets on Norwegian Cruise Line ships are not compatible with plugs from North America, which have two flat pins and one round pin. Therefore, travelers from North America will need to bring a travel adapter in order to use their electronic devices on the ship.