3.5" square pole mount suggestions

[Optimus Prime]

Trenches are dug and conduit is laid. Now I'm thinking about mounts. I did not fully consider the diameter of my turrets when I chose the 3.5” x 3.5” pole. The pole isn't going anywhere at this point, so I need to make it work.

Could y'all give me mounting suggestions? I have 2 Starlights (HDW5231RP-Z). Is there something I can use to reduce the diameter of the starlights where they will fit properly to the pole? Or do I just caulk around them to ensure moisture doesn’t leak in behind them? And let them be a little wider than the pole?

 

[TonyR]

Consider mounting a metal PFA-137 junction box to the pole and then mounting the cam to the box, sealing off the back of the cam. Personally, I'd prefer to have the base a bit wider than the pole instead of worrying about a lot of caulking.

This box should overhang the pole by about 1/4" on both sides; negligible, IMO.

 

[Optimus Prime]

I've actually got those already so I'll give it a try.