Help identifying electrical item

Anyone knows what this is, I have never seen one before. to me it looks like a oil filter for a car, but this had wires hot wires going in but dead wires coming out

Looks like a junction box backwards to me

Looks like a DIY rigged street light photocell.

Looks like a modified ceiling fan box to me. Whatever it is, it’s not being used correctly and splices are not contained in the box.

Looks like a junction box behind a vanity light from here.

Nice wiring job too :sarcasm:

Any type of PVC box should have KO’s.

It doesn’t look like they were to concermned about using the knockouts.:wink:

Yep. Pretty sure that’s it.

it was located in a basement at exterior wall

I’m sticking with post #3. :cool: