This is the vessel set-up if less than 50 meters if the vessel is AGROUND.

As you note there is the traditional all around WHITE light accompanied by TWO VERTICAL taller all round RED lights. Also note the the round balls in a vertical line.

If the vessel is less than 7 meters and most importantly NOT in or near a narrow channel, fairway or anchorage, it does not need the all around WHITE light or one ball.

If it less than 12 meters, it does not need to exhibit the lights seen in the photo.

Yes, confusing but unfortunately necessary to learn and know as you might be in an AGROUND situation or encounter one!

Hugh Simpson