1. Thermoelectric, CFC free, no compressor 2. Cool and warm 3. Certificate: ... below the ambient temperature (25 degrees)•Warming: 40-60 degrees•Thermoelectric, no compressor, CFC/HCFC FREE• •Packing Details:• •1.1pcs/ inner ... Quantity: 20GP: 308PCS, 40GP: 672PCS, 40HQ: 720PCS 30L car refrigerator thermoelectric cooler and warmer