... Hot Research Technology, V018 mini WOOD portable car refrigerator,car freezer,Car Fridge, car cooler, car cooler & warmerThis function description:This product can ... color lamp instructions compressor open/stop state, a four 8 period of blue-ray digital pipe display the ... speed error, compressor control box every 4 S issued four fault signal.D, compressor overheating protection, compressor control box ...