If you are looking for a plug and play G4 base replacement LED bulb for your overhead puck lights that gives you the same light output as a 10W halogen bulb, the new micro bulb lights from Marinebeam will do the trick. I purchased six bulbs for Semper Fi's galley and recorded an 88% drop in amperage draw from 5.7 amps to .7 amp. The added bonus was an almost complete lack of heat coming from the fixtures, which is also beneficial when running the air conditioning. These bulbs will easily fit into a standard puck light and are the perfect solution to the lighting needs found on may boats.
Other posters here have commented on Marinebeam's excellent customer service and I can attest to that. If you sign up for an account and ask for the trawler discount, you will receive 10% off the $15 per bulb price. Buying 10 or more will further discount the price.
After replacing the galley lights, I upgraded the overhead lighting throughout Semper Fi and could not be more pleased with the results. For the record, my only connection to Marinebeam is that of a satisfied customer.