Pulse jets HAVE been flown at night, back in the day when control-line was big., but who knows what the AMA's position would be today? I've flown glow control-line at night with, and without lights. Without lights you fly by feel, just like the combat guys who are looking at their opponent, and not at their own airplane. I will say I didn't do any stunts while flying with no lights. I didn't have the guts! I know that they have been flying control-line at night at the Joe Nall since the control-line circles were added a couple of years ago. I need to get some LED's and give it a try.