1.solarfreezer with DC compressor freezer, input voltage 12V or 24V, input power 72 W. 2.mechanical adjustment of temperature. 3.automatic turn-off when low voltage 4.Insulation: CFC-free polyurethane foam 5.anti-discharge battery protect. 6. Loading quantity: 96pcs/40HQ 7: Carton dimension: 1020*605*950(mm) 8: Accessory: AC/DC adaptor(optional, only used when connecting with AC power)