Rear worklights, 2 questions, w/pics

I already have the fender brackets for each fender.

Two questions.

1) Where can I get some sort of swivel mount for the so I can move the lights around?

2) I assume the ground connects to the big mounting bolt and the lead from the terminal block hooks up to the smaller machine screw on the white plastic post?

Ya' gotts the electrics figgered out, but with all the rusty joints on old tractors, I'd supply a separate ground wire anyways. Naturally, an in-line fuse somewheres too.

Dang.....thems good enuff lookin' lites, where did you find them and how much? if ya' don't minds my asking..... ..Dell

I paid $5 each for them.

I have since opened them up to check out the wiring and I was correct in my first post.

Also the switch is high/low, not on/off.

They're made by Hobbs (put that in here so if someone searches in the future, they'll find this post.)