Compressor:Double rotary compressor (R134A refrigerant) External fans:Two Jingma brushless fan Current: 55A Voltage:12V Rated power: 900W Internal fan: Ribang fan Evaporator: All-aluminum Condenser: Equipped with aluminum fins Refrigerant filling volume: 550G R134A Exterior fan: Brushless motor External unit size: 95X80X17CM Cooling capacity: 2150W