Rare HMA-60 (an OV-60 for parking lot use) 1000 watt mercury fixture found at a Shell fuel station in Federal Way, Washington. There were two of these; both were missing their lenses.
My school parking lot has one post top (there probably used to be a bunch, because there are a bunch of pole bases in the ground cut and filled with concrete. It looks almost like a square twistpack. The rest of the lot is lit with a few newer floods.
Michael, show us the 400 watt version powerpack and a 1000 watt powerpack (yep this is a challenge, but it's to show how educated you are Michael (don't boast though )