i am in the process of building an incubator, and am having issues. first, the only thermo i could find has 5 or 6 screw ports (not 2 like most i have seen used). i think that it can be used for 110v or 220, and 10 or 20 amps. so i plugged in the light bulb into 110v and 10 amps. the light turns on, but not off. i have set the temp screw to the lowest (below the scale) setting, but nothing, the light ust stays on. any ideas on what i did wrong? in my mind, must not be so bad, because everything turns on. could it be a broken thermo unit? i left it on for 2 hours, and it only reach 102. would it be worth installing a smaller light and just having it on 24/7? open the door if the temp gets high? the problem i see with this would be during the lockdown phase.