It's just a crap design - the contacts aren't that tight to start with. If you spin the bulb with thumb and forefinger while it's still in the contacts it should come on. You can try taking the bulb out, squeezing the contacts slightly toward the center to tighten them up and push the bulb back in.

Marty, think Mikie is right now that I understand the bulb configuration. After using the grease see if you can tie a knot with braid and pull the two contacts together, I believe that the sockets have a ear at the top if they are what I think they are. Worse case if you can pull the light ass'y off replace them with bayonet sockets

I've seen battery terminals in boats and trucks that were not tight develope a corrosion around them.

Sounds similar to what you have going on.

Bulbs should last a long time. I've only replaced mine once in 13 seasons.
Sometimes they get left on all day - I forget to turn them off once sun is up :rolleyes:

The bulbs draw very little amps.

A crappy design; you bet:D. I went to Home Depot and asked for the dielectrical grease; they never heard of it:eek:. I did buy a small tube of "Noalox" (Anti-Oxidant Joint Compound) which "promotes good ground continuity".
Sounds like it's worth a shot:rolleyes:. I'll apply some this weekend and see how it goes. Only cost three bucks; might be worth while.
5th (Marty)

Marty, noalox is just as good. It is mostly used in electrical panels on aluminum wiring. It prevents oxidation, corossion and is conductive..........Gary

Thanks Gary; what I actually did was put some on the green light and left the red light without the "grease". I'll now see if the green light lasts longer than the red.
5th (Marty)

Not sure that was smart.
What if the red light turns around and does not spawn :D:D:D

Seriously , great idea / way to trouble shoot the problem.

Marty, You are such a scientist........gotta have a controlled experiment:D..........Gary