Hot & cold, high quality compressor refrigeration Abs plastic, with/without sterilization cabinet or fridge. Safe water guard for non-spill closure Safe thermostat for anti over heating Heating input:500 w 5 liters/hour 85-95 degrees celsius Hot tank volume:1.1 liters. Cooling input:112w 2 liters/hour 5-10 degrees celsius Cold tank volume:3 liters. Working temperature:10-38 degrees celsius. Gross and net weight: different per model. Packing dimension: different per model. Refrigerant (in compressor refrigeration): r134a/r12 Plug: any standard plug connector.