DC12V mobile cooler freeze box with inside installed battery driven refrigeration units can be connected into the battery of van directly.It is same quality with Vebabox and coldtainer box ,it can be used as a mobile refrigerator or cold storage for vans ,trucks ,pickups or tricycle body box ,transporting various fruit ,cheese,meat ,milk ,seafood from -25℃ to +10℃ with chiller and freezer function.