APHC-03502-MT EUROPEAN THERMODYNAMICS PELTIER COOLER MODULE, 4.4VDC, 5.2W; Transducer Function:Thermoelectric Cooler; Power Rating:5.2W; Internal Resistance:2.1ohm; Current Max @ Diff Temperature Max:1.8A; Voltage Max @ Diff Temperature Max:4.4V; Temperature Difference Max:64°C