A few weeks ago I added two new lights inside the cabin. One is centerline above the salon between the head and galley, and the other is on the aft port side over the top loading freezer in the galley. I bought the two new lights at the San Diego Marine Exchange and installed them in a day.
The lights are seven inches in diameter and need a 1/2 inch thick mounting base to keep the lights off the overhead and allow for flush mounting when the headliner is installed. I cut two new eight inch square bases out of 1/2 inch thick StarBoard, a sturdy plastic board I had left over from the wet exhaust project. There is an inch wide gap cut in one side to the middle to conceal the wiring.
It took a full day’s work to cut the bases and install all the wiring. Having the new lights really brightens up the interior. Because they’re LED, I can have all the cabin lights on and use less electricity than one of the old incandescent bulbs!