Hi
This is what the docking light assembly looks like on a 2010 Keystone Cougar 276RLS 28' 5th wheel when it was put in upside down -- the weep hole was pointing up. The unit filled with water and the bulb socket badly rusted.
http://members.peak.org/~scooter1/IMG_3695.JPG
I was told that Keystone stopped stocking the GLO-BRITE clear units in 2014?
I found some amber color units with sockets, but no clear ones.
Hope this helps.
PS. If anyone knows where to locate one of these please send me a PM:
Tnx - I am new to the forum.
Mr. B.