Hello everyone! Hope I am putting this in the right area... I am a newbie & soon to be a brand new chicken mom in a few weeks! So forgive my ignorance. I know week by week you drop the temperature down by 5°, but my question is, is there a way to do heat control with a heat lamp (double headed) that does not have a temperature dial? My mama is offering me her old reptile lamp, just wasn't sure how or if this would work for the little critters. Thanks in advance!