Broiler light requirments

[Northern.Ontario]

I'm wondering how much light (via LED tube lights) everyone gives their broilers/Cornish cross through their lifespan. How much light should I give them in their 1st week, 2nd week, 3rd.... etc.. Should I leave some areas of the brooder a bit darker? My brooder will be 8' x 12' for 100 day olds, arriving next week. I have 4 - red bulb heat lamps and will be using a 4' 4-lamp LED 32 watt shop light (and a second shop light when I expand the brooder to its full size of 12' x 20').

 

[Athena2344]

I raised a flock of 25 broilers last year for show, unless it was hot the only light they got was from their red heat bulbs, if it was hot i'd open up the coop to let it ventilate.