just heard about this and thought I would share. Most people who fish saltwater know that night fishing is incredible around a light. Snook wait in the shadows as do red, trout.... etc. Bait fish congregate around lights and the predators follow the bait.

This is a light that is submerged (rather than sine down onto the water) and gives a 360 degree spread. I have a friend that uses it while swordfishing and get a wide variety of fish off the back of the boat while waiting for the swords to hook up.

here is a pic and the link.