The entire use of LED lighting is something I’ve had on my plate to cover more in depth on these pages… good light output, low power draw, long life, vibration resistance, low heat production, easy to run from DC… all good things on a boat. The only other real competition in power draw are compact fluorescents and they require more space and AC power (at least all I’m aware of).
Anyway, the ladies over at The Big Sailboat Project have created their own affordable design for LED lighting onboard. Check out this link for details. They are using LED’s sourced from HB Electronic Components from China which they had apparently good luck with and got a great price. Might be worth checking out if you are shopping for those types of components.
Note that they have recently changed the domain name of their main page… I’ve updated the links from this site, but if you have it in your bookmarks, you might want to double check.