yes lights are great usually start lights at 15 or so weeks i use 60 watt lightbulb in 8x8 coop i hang from ceiling 6 high so i dont hit my head. this usually helps any breed. today the high was 40 out summer i use 40/ fall 60/ and winter 100 watt just regular bulbs believe it or not 100 watt throws good heat too for winter. i have seen it 15 or lower out and my water never freezes my coop is always at least 20 to 30 degreees warmer than outside. i like to crowd my chickens a little for warmeth in winter plus all the warm from poo i use deep litter . i use 17 hours light. year round. had some red sexlinks once laid stright for 2 years never molted till they slowed down then i sold. i think i should of kept them but was winter and wanted to make room for new. lol AND YES GOT MY FIRST EGG FROM MY MARANS AT 3 PM HAD TO RUN OUT THERE THEY WERE CACKLEING LOL it was med large goodsize egg for first time egg 24 weeks exactly woot woot!! i am going to be keeping egg chart to see how they compare to my barred rocks i use to have. my are from cackle hatchery we'll see how this winter goes!?