Four Photocells in one junction box.

These were at my big brother's apartment, one was connected to the High Pressure Sodium wall packs. One was a Area Lighting Research, the other one looked like a Tork photocell, and I don't know the other two that are manufactured by. But I think one by the Area Lighting Research photocell, I believe its a Intermatic photocell. I don't know what voltage these take.