I was in the woods about 3 years ago when lightining hit close but not real close. There was a small buck underneath my stand. When the it struck he flenched that wasabout it.

Either one would be ok, just depends on what you want to buy. The main thing in my opinion is that I like them to be settable in either night time, day time or 24hrs. Because I do not like running my camera at night time when it gets close to the season.

Thats where I'm kinda going. The flash is not normal to them. But will it make them avoid the area? If it does then lightning and headlights should make them avoid roads and such. This is my reason of thinkin. If there is no noise from the camera and no movement from the camera or no threatening scent then the flash is just a flash. No negative side effects to the deer so why would it bother them?

Because they can see where the source is coming from very close to them.