You can also use 100 watt bulbs. That is what i had been using. But the cold now is brutal and not normal for us here.We hover around 0* at night. Don’t think we went into the negatives last night but they predicted to drop -3*. I have a large 10.5” brooder light with the cage. A red heat bulb. I thought about using a timer...
I’m not sure how warm it will get it there. Don’t want them to be too used to it. Just keep the chill from killing them.