No additional lighting here either. Most pullets lay through the first year well enough that if those numbers are kept up, enough eggs are collected.
While I have used additional lighting in the past with a timer to maintain 14 hours of light. I find it works best to add the light in the morning only, so the flock can go to roost as normal. I don't like the idea of lights off all of sudden in the evening, with the flock caught on the floor in the dark, off the roost. It's easy to wake them early and allow a normal roost.
I also think that a supply of light 24 hours a day is stressful to the flock, and can cause boredom and fatigue. The result of that prolly isn't good either, maybe eggeaters etc.... in my opinion. The more space the flock has the better, if they are closed in the coop totally. Sorry to ramble and start to get off topic, BCC!
Stay Safe,.... ~ bigzio