During hunting season in the fall, I frequently ride in the dark. Getting to a hunting spot before sun up or returning late after sunset.
Get one of those LED head lamps, Put it in the red or blue light mode so you can see branches before they hit you in the face and then ride. The horses can see well enough that they don't need any light.
One year a fellow had shot a moose and we rode into the area to retrieve it. We arrived just as the sun set. Butchered the moose, loaded it in the panniers and I lead off riding my gelding and leading the the other two horses. I found I was better off to leave the light off and just let the horses follow the trail. It was a black night, heavy timber, the horses had only been up that trail once on the way in. So I was timid about just turning them loose. But as they headed for the trailer, I would occassionally hear their hoofs pass over the small foot bridges along the trail, I would see the occassional square cut end of a log letting me know that somebody had cleared a dead fall off the trail. These little signs comforted me to know the horses were staying on the trail. They walked right back to the trailer and stopped.