I used to float fish at night quite bit (still water that is). You could get one of those little light sticks that fit into a waggler and a torch set up on the bank. We also set up flood lights on a friend's lake, but I can't help thinking this would put the fish off up in the water, but we did catch off the bottom.
I imagine fish would be more confident to feed close in after dark, so I think the "glow tip" in the margins could be deadly.
One problem I remember is confusing reflections making subtle bites difficult.