[jennyJ]

I did a COMPLETE LED transition of ALL of my bulbs in my 1997 4000. It made a HUGE difference. Pay special attention to the color of the light. LED's come in a variety of colors (2700k Warm White / 3000k Soft White / 4000k Cool White / 6000k Daylight). It really makes a BIG difference on what color suits your preference. Whatever it is - try and match it throughout the boat.
Personally, I used 3000k for ALL the cabin lights, and 6000k for all the engine room lights.

Additionally, this may sound obvious, but check the voltage of the fixture prior to buying the bulb! I messed up on a couple and put a 12V bulb in a 120V fixture - It didn't end well!