36 Quart 12 Volt Kool Kaddy Thermoelectric Cooler requires no ice and plugs into your vehicles 12 volt cigarette lighter making it ideal for long drives large families and tailgate parties. With the flip of a plug this Koolatron refrigerator can also be used as a heater. This cooler can cool contents up to 40 degrees F below room temperature and in warming mode it will heat food up to 140.0 degrees F. This versatile cooler can also be used indoors with an optional AC adapter plug and be used horizontally like a chest or vertically like a fridge.