Wineadore Question

I am putting together a Vinotemp 28 Humi. My problem is My cellar inthe Winter dropps to 50 degrees. Can someone recomend a heat source to put in this unit? I have a dual Cool/heat control unit that could turn on and off the heat source by a set temp. I of course want something that will not emit light. I tried an under aquarium heater and it was not strong enough.

Rich

50º ain't a problem, as long as your humidity is at 65% RH, it can be just about as cold as you want short of freezing.