I have a 7 watt light in the coop at night for my chickens. They have always had this light. When first putting them in the coop at 8 weeks old they had a hard time adjusting so I put in the light which helped settle them down. I just never took it out. Since my chickens are pets I don't care about egg production. Would it cause them a lot of stress if I took it out now? It's not very bright. My chickens are 10 months old and this is their first winter. Thank You.