1.used for car, ship, camping 2.small volume 3.light weight 4.small vibration 5.high efficiency,good reliability Suitable for water dispenser, small refrigerator, small freezer, wine cellar and other small cooling appliances used for car, ship and camping.Cooling system running requirement: In case the ambient temperature over 43°C, the stable running input of DC compressor should not be over 120 ...