... . Certificate: CE, ROHS, GS, UL,EMC, TUV,ISO 4. Capacity:4L Portable electronic cooling and warming box seriesWith advanced semi-conductor ... cans )Loading quantity:20GP: 1168 PCS40GP: 2460 PCS40HQ: 2800 PCS 4L DC 12V blue mini fridge for car /cooler & warmer/ cooling ...