OK, Sparkies, here is some more info ... The happy homeowner replaced the old pedestal fixtures with new ones (4 incandescent bulbs each, candelabra size). Clamp meter measure 12.2v at the first fixture and I got continuity inside the bulb socket. With just ONE bulb in the socket for each pedestal, NO LIGHT.
The wire is 12g and the run is only 25 feet, so there is no issue with voltage drop.
SUMMARY: I have power to the socket (12v DC), new bulbs, no light.
I am stumped ... Ideas??