The TURD uses so much a/c while camping we've had to look at theatrical
specs for power cords.  If you can get your hands on one, the best is a
10/3 at 50ft with the full neoprene jacket.  They are super expensive
(unless you can "borrow" one) and may require the use of stage-pin to
edison adaptors on each end.  The good part is that they will handle a pair
of PAR 64s that will not only illuminate the interior but will keep it
toasty warm in the winter.

<lighting humor mode:off>

Chris Smith
Director of Smoke and Mirrors
Der Busbesitzer Gruppe