We have 6 easter egger chicks in a giant tote in our coop. Daytime temperatures are 85-90, we have turned their light off during the day. At night the low in the coop last night was 66 degrees. I have been turning on the light at night but even now at 9:30pm it is 86 degrees in the coop. When do you all think it is safe to leave their light off?