Lots of people supplement lighting during the winter months to encourage continued laying, with no ill effects. It usually involves putting a low wattage light or even string of Christmas lights in there on a timer, set to go on at a whatever time will approximate the 14-16 hours of light for optimum laying. For instance, they may set them to go on 4am and off around 7, or whenever the sunrise is. Otherwise the chickens tend to take a large part of the winter off. Pullets will usually lay well during their first winter, but older birds not so much.
It's strictly a matter of personal preference. I don't supplement. I figure Good Lord gave them a schedule and it includes a little time off during the winter to replenish what an egg laying season takes out of them, so I ain't messing with it.
I'm also big on keeping it simple. I brood outdoors in the run with the adults. Chicks are in a wire pen and can see the Bigs, and the Bigs can see them. I generally have full integration, with little or no interference from me, by the time the chicks are 4 weeks old. I don't use a heat lamp, just an easy metal frame made from scrap fencing, straw packed inside, all around and on top, and a heating pad. I don't take temperatures under the pad...if the chicks are happy, I'm happy. I'm in northern Wyoming and brood chicks even when temps are in the teens and twenties, so some kind of heat is essential out there, but I distrust 100% heat lamps or clamp on lights. One person can use them, just hooking one up at random and go 50 years without a problem. Others put one in for the very first time, secure it like Fort Knox, and burn down a coop. Since I'm already old, the odds are against me!
But all of this is up to you. If there was only one way to raise chicks and chickens, this entire web site would take half an hour to read!