Norcold SCQT-4407 is a 40-watt appliance designed to convert a sailboat ice box to a mechanically refrigerated box. It can operate from either AC or DC power supplies. The cooling plate is separated from the compressor/condenser unit by flexible refrigerant lines. The length of the suction tube is 12 feet, the length of the AC cord is 5 feet, the length of the DC cord is 3 feet minimum, and the length of the thermostat cord is 10.5 feet. The exterior dimensions of the compressor/condenser are 12.3(H) x 9.1(W) x 6.0(D) inches, and the dimensions of the evaporator are 16.0(L) x 8.5(W) x 10.