Ponant says this in their FAQ:   Are onboard power sockets European standard?  Yes, the 220 volt 50 hertz alternating current is distributed by sockets meeting European standards. Onboard power is 200 volt AC (European standard) and 110 volt AC (North American standard). For safety reasons, hair irons and clothes irons cannot be used in staterooms. Please note that on Le Ponant, 110 volt AC is only available in stateroom bathrooms.   I don't know that we knew this might