Sphynx 000,
Those are pretty cool. When I was younger we would use a sinking light off one side of the raft and a floating one off the other for crappies. The lights draw in the minnows and the slabs. The fluorescent ones seem like they would use less energy.
I use a lantern in the winter but the sinking fluorescent might really work good. I'll
have to look for them at Cabelas.
Ted