Stand selection at night is different than during the day, some other factors come into play. But that isn't really answering the question you asked.
One thing I have really noticed, is that coyotes seem to get light shy way easier than they get call shy. Some of my calling areas I have learned to not even bother night calling because there are too many road and dog hunters that shine the country all the time. In those places a coyote will shag as soon as they see a light, and no way in heck you will call them. So I don't even waste my time, and educate them further. Other areas I have pretty good success and they will come right on in, because they are not used to the lights. Just depends.
I seem to do better in more open country with fewer dancing shadows myself.
For sure, run the light from the beginning and keep a good eye downwind.
If your coyotes are light shy, don't keep trying to call them. Don't add fear of the sound to their fear of lights, or you won't call them in daytime either.