I have 4 Rhode Island Red Chickens 7 months old in November. I live in the Mountains of Colorado and it gets to -25-35 degrees below zero. I put an Infrared heat bulb 150 watt in their small coop and it keeps the coop warm at 36-45 degrees as the coop is not insulated. I am new at this and have read that if you want them to produce more eggs to have the coop lit with light for 14- 16 hours a day. I have the Infrared light on, they can't see red from what I have read....so.....should I change the heat lamp to a clear heat lamp of 125 watts? Or should I just keep the red heat lamp on? They lay about 3-4 eggs per day so that's about one egg per bird.