I tried the larger kill lights and sometimes the larger hogs shied away or wouldn’t come into the light. I had better luck with a green headlamp strapped to my bow. I waited in the dark until the pigs were at the bait and eating. I then turned on the light while aiming it up in the air. I slowly brought the light down and held it as steady as possible. One or two pigs out of several groups I tried this on were nervous, but came back in. After a while with the green light, I turned on a brighter white light without spooking the pigs. I didn’t shoot any with lights this trip, but could see well enough to pick a good spot.
Here is a picture of part of one group that came in just after dark. There were 2 decent boars and 2 sows including a huge pregnant sow with this group. None ran away when I turned on the light. There was a large boar that kept circling and growling that never came in.