I first saw the lights in action a few years ago during a night tournament at Lake Sinclair. I had fish until almost dark without catching a bass then just as it got dark went into a cove to fish a brush pile I knew was there.
As it got darker I noticed a weird green glow in the water on a dock across the cove from me. I eased over to it and saw it was an underwater light so I started fishing around it. The cabin door opened and a guy came toward the dock. I just knew he was going to tell me not to fish around his dock and start casting so I would have to leave.
Instead, he started asking me about the fishing and told me the light was the Hydro Glow Light system he produced. He said the bass would move in a little later to eat the shad that were already swimming under the light and I could catch them.
As we talked Darrell Keith explained he owned the company and this cabin, and tested his lights here. The green one was new and it was working better than other colors they had tested. Then he said there was a bass at the dock. I could not see it from the boat but he told me to cast a crankbait to the light. I did, and caught my first keeper of the night.
I got a card from him and he told me to stay there, that more bass would move in, and he went back to his cabin.
I did not leave until the tournament ended and caught a limit of bass, winning the tournament. Every time I have gone back to Sinclair at night I have not been able to fish the dock. Too many other fishermen have found it and there is always a boat there.
Hydro Glow makes several lights and have just come out with a high intensity light that is compact. You can choose 12 volt lights for use from a boat or 120 volt for permanent mounting on a dock. Green works best in freshwater but there are different colors for use in salt water that work better there.
Check out their website and watch some of the videos. The lights are fairly expensive but you never have to buy fuel for a lantern like we used to, and they will last you a long time.