Re: trailer light bulbs
When you solder a connection, the solder flows up the wire a short distance making it in effect, a solid wire, not stranded. When subject to vibration, this is the point where it will fail. This is the Coast Guard's objection to soldering wires in marine applications. <br /><br />The Coast Guard has no jurisdiction over trailers, but common sense will tell you that they are subject to the same moisture and vibration stresses.