For motion they use infrared..
It is woodsy, but I get enough light to keep the battery charged. I have some property in Northern MN that I'm going to use a cam and the large solar panel. Deer, and wolves, cross a field. I'll put my setup on the Northside so the panel will get full sun. It should work pretty good.
I use just the starter plan that allows 250 pix/mth. I'm 3 weeks in and only have 25 pix left. But, it's only $5/mth. Not ready to "spend the coin"

to go unlimited. I too really enjoy seeing what's out there...