Originally Posted by sailingdog
If your dinghy is under seven meters and running at under seven knots, you don't need navigation lights, and can use a single all-around white light instead.
According to my Navrules booklet with illustrations, the above works for international, but not for inland, which latter doesn't list the exemption for "under-7s". This seems strange, but that's what the book says.
So an attachment point for sidelights would be useful, and make your light display easier to understand than one all-round white, which could also be an anchored vessel.