Nice older 70s B2255/B2228s, I'm guessing MV?

Any 1000 watters in there?

400 MV 208v and the bulbs are hammered out
B2255 powerlite

You can do what I did and find a used Thomas Duplex safe light for photography darkrooms. They have a 120V 35w SOX ballast and lamp and you can put the gear into another fixture or just use the safe light itself as ambient lighting. they seem to be more plentiful  and cheaper to find than SOX streetlights.

Thanks! I’ll do that.

If you or anyone needs it, I have a few ballasts I just got. They're specified for LPS with 35W, 55W or 85W and made by the German quality brand Vossloh Schwabe.
If you're interested, just send me a PM. I could ship it from Germany, depending on where you live and sell it to you.