COLMATIC CB-40 Capacity; 40 litres; Voltage: 12/24 volts; Power input: approx. 45 watts; removable cooling unit (1.5 m cable) Average running time: 17% at 20degC ambient temperature, 27% at 30degC ambient temperature, both at 5degC interior temperature; Power consumption: power input x average running time; Temperature range: from normal refrigeration to QQ deep-freezing; System: fully hermetic Danfoss BD35F compressor with integrated control electronics, low-voltage protection adjustable for consumer or starter battery; electronic fuse/automatic reverse pole protection; inside: foamed evaporator (invisible); three-sided statically ventilated wire condenser mounted on bottom plate; Material: outside: zinc stainless steel, bottom: black, Shock-resistant plastic, Quality features: separate cover inside complete with sealing and insulation.