I've got a couple of those little LEDs that you stick to a wall and push to turn on in my coop for extra lighting. However, I can't tell you if that helps with laying or not as this is my first winter with the coop. It's mostly so I can make sure everyone went up for the night and there aren't any stragglers since I get home from work when it's dark now (thank you, Daylight Savings). They were cheap, though, and run on AA batteries, so that might not have the staying power needed to help supplement for laying purposes?What do people do for lighting in the coop? I know that if you keep a light on for them they may lay eggs through winter.