I have an Engel 35 quart size frig/freezer. It will cool or freeze depending on the setting, and it runs on either 12V or 120V. Switches voltage automatically as it has a sensor. I have both a freezer and frig on my boat
, so I use the Engel for overflow or most often for beverages so I am not constantly opening the frig. At the beginning and end of the season, I use it to bring or take home refrigerated items. Works like a champ!
The Engel website will have the dimensions of its various models. The company makes several sizes. Not cheap
, but you get what you pay for.