I'm going to raise the lite up currently on a tree at 5' I'll move it up to 10' and see what happens
Even a bit higher, if possible. I mount mine a minimum of 12'. 15' would be better if you can accomplish that.
I promise you, you'll have no problem seeing anything that walks underneath it.
I use an extension ladder to get my lights up that high. Its not convenient, it takes some effort, but has worked well for me.
Even if the hogs spot the source of the light, they often don't associate it with a threat. They have no natural predators (save for humans) that attack from above.
Then just turn the light on and wait. That way...even if the hogs see the light, they can do so at a distance and decide whether or not it presents a threat, most often they will come in...even if cautiously.
This is in contrast to them coming in (in darkness), suddenly getting 'lit up', shadows (that weren't there before) are created AND they see a big 'Ol honking light source appear just 5' high and likely pretty close to them.
If you were a hog....what would you do? I'd haul my hairy butt out of there so fast.........
No doubt, you've witnessed that already?
Let us know how it goes, and best of luck to you.
Flint.