Electrical Connections and Light Bulb Sockets
How to prevent corrosion in the light bulb sockets and in all of the electrical connections.
This is especially helpful if you live in a high humidity state or your state uses a salt on your roads in winter.
First clean all connections with an abrasive like steel wool, or better yet, emory sandpaper.
You need to coat all electric connections with a water repellent,non-melting, dielectric grease lubricant.
http://www.mgchemicals.com/products/8462.html
(Paul- TenFeathers)