Thanks to Jim V for donating a temp controller for the large lagering fridge!
It's now programed up to turn on at 36F and turn off at 33F (to alleviate the on/off cycles). The reason why I'm posting about this is because when the controller turns the fridge off, the light inside of it will be off too. Not to worry! It's still working.
Let me know if you have any question about this.