Inexpensive floating and submersible lights are the ticket and in no time at all, they will bring the food chain right to your boat. The lights mimic the moonlight and come in white or green. The light draws in plankton, which then attracts shiners and in turn Crappie. The brighter the light the further it will shine and draw fish. I have had the most success with the green light, which I think closer resembles a full moon.
Fish are more active around a full moon than any other time.
Crappie, on summer nights, by far tends to be more active than during the smoldering day. The extreme pressure Crappie face during the spring and early summer days could account for their switch to aggressive night feeding. Chances are the average size will also be better. Crappie Nights When using light, your boat location is not significant. You just need to be in the general area of the Crappie and they will come to you.