I havn't tried the LED lights on my boat. I had a halogen light mounted on my boat to aid with navigation. I mounted mine on the side of the trolling motor bracket. I drilled a hole through the "O" in the word MotorGuide so when I took it off the boat you couldn't see the hole. I have used some of the Rigid Dually lights before on other things, and they are very bright. Not a 100%, but I don't think you can run a constant foward projecting light while underway on the water, due to blinding other boaters.