Caravans require a 15A power supply, and use a extension lead with a large earth pin. This lead won't fit most standard household sockets, whichs leaves you stranded when camping in the backyard of a friends house. (You're providing the entertainment, so the least they can do is provide the power, right?). So check out the Amp-Fibian 10-15A adaptor – part #RV-02. Fully compliant giving you power where you need it!