At 10 feet this light is super bright on the surface you can see lots of fish. The fish, Crappie, Sandbass, Yellow Bass even swim upside down in it. It's funny to watch. I was told that the fish think the bulb where its the brightest is the surface of the lake. So they think the bottom is the top and the top is the bottom. We have Black Bass that have taken up home around the light. They swim the correct way but stay around the edges and dart in and out after the shad and minnows.
It's like watching fish in a aquarium. I watched a small turtle the other night chase minnows around and around, he wasn't fast enough to catch one but he kept trying. I was LMAO.