1.uprightrefrigerator with DC compressor, input voltage 12V or 24V. 2.total capacity 158 litres, upperrefrigerator compartmenand bottom freezer compartment. 3.temperature adjustment by mechanical thermostat.4.automatic turn-off when low voltage5.Insulation: CFC-free polyurethane foam6.anti-discharge battery protect.7. Loading quantity: 124pcs/40HQ8. Product dimension:495*500*1295(mm)9: Carton dimension: 635*585*1385(mm)10: Accessory: AC/DC adaptor(optional, only used when connecting with AC power).