At our lake, there is an underwater fishing light that several people have gotten called the Green Monster. It really brings in the fish, but I just could not see spending $400 for a light, plus if the bulb goes out, you have to send it in to the manufacturer so they can replace it. I researched a little and found an LED version and it really works great, for nearly a quarter of the price. This is with the light about 3-4' deep in about 6-7' of water and it brought in the shad like crazy. There were also some crappie and bass chasing the shad. The kids really like it bc it is like a real life aquarium.