I've seen those around here before! In fact I had the chance to buy one when I went to that salvage yard but I was annoyed they wouldn't sell them and left in a hurry, I should of bought it looking back at it.
This is actually the grcoery store I work at now! Both flood lights were changed to big 5000K LEDs like six months ago. The timer is all weird so they come on at like three in the afternoon lol. The brown generic flood was HPS and the older flood was converted to HPS but never worked (had a new looking lamp so probably bad ignitor). It was almost certainly MV originally. Perhaps they couldn't retrofit its partner so it was replaced with an OEM HPS flood... The LED flood lights are huge and they've been sagging down ever so slowly lol.
Eh the thing never worked so it's actually an improvement. I'm just bummed I didn't get it. I think it was made by ITT but need more info to say so with any degree of certainty. I haven't seen any documents suggesting it's an ITT but I've heard speculation from others that have seen this type of flood light elsewhere.
There were some old floodlights like that except they were 400w mercury vapor with clear lamps. The place was remodeled, and they removed them "the contractor way", a.k.a. introducing them to Mr. Bulldozer.