Wow nice find......do you have any idea when the conversion was done? Dave I know some of such lights were also found as mercs in the area ya know...what if it was a merc?
Metro here is (in)famous for relamping with whatever is on the truck, fits and lights up. I often see a line of HPS with one MV in it, or a line of MH with a single HPS in it. I have seen a few times a 80W lamp plugged into a 400W ballast.
Well look, its obvious. Its old, 40s vintage, and set up for series operation. There are two other span wire installations on the same street nearby, and they are series incandescent.
They were incandescent clear up through the 90's. I used to live around there. Victory Blvd had many series span wire deep bowl teardrops still in service late in the game through North Hollywood. have not checked lately. Neighborhood dates back to the early 40's to mid 50's. Doubt most still exist.
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