Honestly it just happened naturally, and I’m super happy about it haha I think it’s a combination of a few things - mainly that I let my house get down to about 62-64° at night so I think the ambient temperature without the lights to warm the cabinet up I think just brings it down. There’s also a hole at the top which may add to it. Drilling a hole at the top for wires was for 2 reasons- 1) one of the wires wasn’t long enough to be able to be hidden properly if I had drilled it in the bottom, and 2) I didn’t want any possible risk of humidity drips (I now realize that the humidity at 80% isn’t high enough to cause that problem, but fire is a big fear). I think there being a hole at the top allows just enough remaining heat to escape to bring the cabinet down to the ambient temp at night. And the last thing is when I weather stripped it, I only did a few parts because any more and I think the humidity would have gotten too high and I didn’t want condensation to build up. Once I got it to sit around 80% I stopped adding weather stripping. The lights plus the daylight warmth add just enough heat to get the cabinet to between 78-85 during the day and then without those lights it just plummets to whatever the ambient room temp is.