Arms and Fixtures!

You can see different style arms, and fixtures

In the pic you see three 4 foot Utility Metals arms, 2 are holding GE M-400A1 400 watt MV and one holding a HPS GE M-400A2

Then you see one Hapco 4 foot arm with a faded bronze Crouse Hinds OVM 400 watt MV

Finally two 10 foot Curlee truss arms both holding GE M-400A1 HPS.