The Mag Lite works great the beam is dead on at 20 yards and works out a lot cheaper than some of the hog lights I have seen on the net.
Mine is a 2 "D" cell which is a tad heavy so get a 2 "C" cell.
I use it a lot with the clear lens at work on the week ends for taking care of a rabbit problem

But for hogs I use the red lens so they dont spook, I even called in a coyote and lit him up with the red lens, he never spooked he just would not stay still long enough for me to get the shot off[:@].