How deep?

[happycaster58]

2-3' deep and usually under a bridge.

[happycaster58]

2-3' deep and usually under a bridge.

I thought you were asking how deep to place the light under the surface! Put the light out under a bridge just before dark and leave it there. In 30 minutes to an hour, you should have bait circling and crappie beneath them. Fish in depth that crappie usually visit or a little shallower. I would look for a bridge in 20' or less. If there is food around, they will come. Smaller bait usually appears first. Start fishing then.