How do you regulate them?? I have a wonderful incubator my husband just made for me, and have spent the last 3 days trying to regulate it. Started with 2 25 watt bulbs, but it wouldnt get hot enough. Switched to 2 40w bulbs, but now it goes from about 95....to when I adjust it just a tiny bit, it jumps up to 105. How do you get it right??? Thanks in advance!
Angela
Angela