An occasional shore power connection?

[VicS]

https://www.aldi.co.uk/adventuridge-portable-mains-kit/p/717992625843501

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[WoodyP]

I have something similar. It is rather heavy and unwieldy in a smallish boat

 

[PetiteFleur]

Yes, I have one fitted in my boat permanently with a proper inlet socket for the EU plug. No need to wire sockets traditionaly.