Finally got a chance to try out the 66 LED deck light on a boat. Gotta say it was everything I had hoped. The distance to the transom was 10’ on this boat and the whole cockpit was lit well enough to fish from. The only thing I noticed was that there was a definite shadow (as there would be with any light). The cool thing here is that you could put two of these rascals on a hard top (port & starboard) to minimize shadows, and you would still only be drawing less than one amp of power—about the same as an interior festoon bulb. Anyways, it's kind of cool to have an idea and have it actually work.