... from -19 to 10 3.CFC-free refrigerant R134a 20L Car and Home Use DC Compressor Portable FreezerParameters of portable freezer Power ... for solar power supply operation.12. Use for Camping&Outdoor, Car,4WD, Motorhomes, RV, Caravan,Truck, Automotive, Boat, Marine, Home ... 30L, 45L, 55L, 60L, 70L, 80L portable freezer and portable fridge freezer are also available. 20L Car and Home Use DC Portable Freezer