Why is the lightbulb always on inside my refrigerator? That seems wasteful and inefficient. shittyaskscience

Refrigerators need to stay cold and lightbulbs generate heat. I have opened the door five times at different times of the day and it's always on. It seems silly and wasteful to have it on inside a closed box.

Submitted August 01, 2017 at 04:41AM by DemandsBattletoads http://ift.tt/2vgSCrs shittyaskscience