Welcome to the club medtec!
I notice several silly issues that others on here complain about regularly were corrected in my flock with lighting.
Hens sleeping in the nest box: If a tussle erupts over roosting spots after it gets too dark, a hen might get knocked off. Their poor night vision makes it near impossible to find their way back up, with the nest box being the safest place to go. If I find one when I go to lock them up in the nest box, I shine my flashlight just enough to show them the way. They go right up on their own.
Chickens in the run after dark: Same basic issue. I have a couple that are usually the last to go in at night. Sometimes the first in get a little cranky, and the coop gets a little heated. The ones that go in last like to wait until the others settle down a bit, sometimes it gets dark first. Give them a little light and up they go.
I try not to keep too much light in the coop. However, a big issue with mine was that the windows on the coop are on the north side. As it colder, I stopped opening the windows at all unless it was a little warmer. In the winter time, it gets dark much faster. So far I have started leaving the windows open until I go out to lock them up. Sometimes I turn on a tap light that I can reach through the nest box. That little extra light plus having more natural light from the windows has corrected most of my issues. The other thing was when I first started keeping the windows closed. The adult roo would walk into the coop and then walk back out, look up at the sky, then walk in. Poke his head back out, look up at the sky. After watching this, I realized just how dark the coop was. It didn't take him long to re-adjust his roosting time, and get the hens inline.