Speaking of fixtures, there are 6 different types of fixtures on the boat.
- Ceiling down lights - this is the majority with nearly 70 bulbs replaced
- Ceiling spot lights - There are probably a dozen of these.
- Wall sconces by the beds - a total of 4
- Exterior ceiling lights - figure another dozen
- Closet lights - probably 6 or 8
- Utility space lights - another dozen
- Engine room lights - 6 total
For those 7 different styles of fixture, 4 different types of bulbs were required.
All the bulbs being replaced were 20W each, and the replacement LEDs are all 2W each. That's a whopping 10x reduction in power. With a "bunch of lights" turned on the boat was initially drawing 25-30A at the panel. Now it's around 3 with the house lit up like a Christmas tree. This not only makes a huge dent in the battery drain while at anchor, and subsequent generator time to recharge, but it also greatly reduces the air conditioning heat load. All those incandescent lights were kicking off about 2500 BTU/hr of extra heat. When you consider that a small room air conditioner is about 5000 BTU/hr, you can get a feel for how much extra heat they created.
I highly recommend this enhancement on any boat, especially those that spend any appreciable time at anchor. Making the change involves taking a careful inventory of all the light fixtures in the boat, and opening up one of each type to sort out exactly what type of bulb you will need. I used warm white LEDs through out to better match the feel of the original lights.