Engel SB70F-U1 is a refrigerator designed for installation in vehicles and boats. It can be powered by either 120 volts (60 hertz) AC current or 12/24 volts DC current from a battery. The refrigerator has a capacity of 8.2 cubic feet and features adjustable shelves, a built-in light, and a reversible door. The SB70F-U1 is also equipped with a number of safety features, including a temperature alarm, a low voltage disconnect, and a high voltage surge protector.