Rated Input Voltage: 24V DC Power Consumption: 240W Circulating Air Volume: 50-150 Refrigerant Filling Amount: 160g Cooling Time: Day3-5H Night6-10H Low Voltage protection volume: Factorydefault 21.5V(19V-24V can be set) Machine Size: 570*260*350mm Outer case Material: ABS Current: 4-10A Rated Cooling Capacity: 2700BTU/H Refrigerant: R134a Energy Efficiency Ratio: >=3.3 Working Temperature: 5-+55C Model: Variable Frequency N/G Weight: 10/11.5kg Outer Packing size: 63*32*38cm Panasonic dual rotor compressor