Great question! I have a light on a timer during the winter months so they can get settled in. It's only about an hour or so after the door closes because it gets darker in there earlier than it is outside that time of year. I let them naturally lay as well. Hope that helps!
So I have an interesting question. Something I have been researching since last fall.. one of my 6, now two year old girls, Black SexLink, never molted last fall (all the rest did but her). She also laid the whole time also. Now they were free range for the first year of their life until last...