I bought a couple of the styrofoam floating headlights at wally world last year. I had one that worked and one that didnt so I had to take it back for a trade (that seems to be the biggest problem with them, some work-some dont) I think when walmart gets them returned they just put em back on shelf. I took the new one to automotive and hooked up to battery before getting it. Also good idea to get some heat resistant epoxy t hold it together. They have about 12ft leads you can splice few feet onto it to get farther from battery. I use a small tree stand placed on a good size tree or stump to hold my battery then hook light to it, it works GREAT. I hook it up, place light where I want it and back off and drop anchor to fish. I dont have a submersable LED light but I'm wanting to add one too. It seems like it would work good to have a floater and a submersable, any thoughts?