Use bulb grease on all your connections. I clean all connections yearly and apply a small amount of this stuff on all connections. It will keep bulbs from freezing in sockets, corroded conections, etc. Simple maintenance solves major problems. I have posted this before, so this is just a reminder. Am I an expert on this? YEP!

Check this link.

http://www.ehobbytools.com/index.htm...tml&lang=en-us