I am a little confused by the link to Imtra. It is for little power supplies to run LEDs from ac. Wouldn't it be better to run them off the house battery? I do that with all of mine, and I already have a battery charger to convert ac to dc. Anyway, I want for them all to work away from the dock. I have a couple of ac LED bulbs that I run at the dock - eventually all the bulbs on board will be LEDs, but an ac bulb does not require a converter. They are pretty expensive anyway, 12V power supplies are pretty cheap.
1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida