Baxi Gas fire?

I have just sold a Baxi Arena Gas fire for a friend, the person I have sold it to has come back to me asking if I have the power lead for it? Can any standard electrical cable be fitted or does it have to be a specific one with a certain connector? Without having the fire with me it hard for me to know...and the guy doesnt seem to clued up. It needs the electrical connection to power the bulbs and the ignition.

Thanks