That’s such a cool fixture! I like how it is so versatile in how it can be mounted. I could see something like a retail store just ordering a bunch of these to tackle their outdoor lighting instead of individual types of fixtures. They could mount them on arms for the parking lot lights, mount them to the side of the building for lighting around the store, and mount them to the ceiling for any covered areas they may have.
I think I have seen these at places such as schools, hotels, hospitals, apartment buildings, concession buildings and restroom buildings in parks, hospitals, university campuses, office buildings, and other places.
I'd be too tempted to retro-fit that with mercury gear and run it with a clear lamp. Is the lens assembly acrylic or polycarbonate? That would be the deciding factor.
I have one. Well used. I once had it installed on the house. It is 70 watt metal halide. Yours would be better with a GE Lucalox than this crappy Sylvania Luma-SUX! They made horrible HPS lamps that don’t have amalgam reservoirs and practically burn out in what seems to be e about 50 hours! 😩 Total and utter CRAP bulbs! Sylvania never could do HID worth a crap 💩! The fixture is nice though! The spring in the Luma-Sux lamp makes them “look” high quality, but they are junk. I had enough experience with them to be able to tell you that. Any HPS lamp with amalgam reservoirs is trash. I guess the metal halide pulse start version like the one I have is pretty rare. The ballast can rub 75-100 watt mercury lamps with the igniter disconnected. Anyway, cheers!