BoatBanter.com - View Single Post - Nav lights on sailboat while running engine

Wayne B

On Thu, 03 May 2012 08:12:56 -0400, wrote:

Where nothing else will do, there is nothing as effective as silicone
grease in excluding moisture from bulbs and other semi-exposed
electrical contacts.

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I'll second the motion regarding silicone (dielectric) grease. I've
started using it on just about everything, even dipping wire ends in
it before crimping them. You can buy a good sized tube of it at NAPA
for about $3 which makes it a real bargain.

Sounds like your switch may have to be labeled "under sail" and "under
power!"

The last of my old sailboats had 3 switches, one for the masthead
tri-color, the original for the deck mounted lights, and the third was
for the mast mounted steaming light.