Specification Model: LC-V550 Material: Aluminum, Copper, Stainless Steel Color: Silver Power: 550W Voltage: 220V/50Hz Rated Speed: 1440 rpm Inlet Diameter: 1/4” Max Vacuum: -900mBar Noise:? 62dB(A) Operating Environment: -5? 45? / 23113? Exhaust Volume: 102L/min / 3.6cfm Number of Cylinders: 2 Number of Cooling Fans: 2 Temperature Rise:? 85K Gross Weight: 10kg/22.05lbs Net Weight: 9kg/19.84lbs Product Size: 281522cm/115.98.7in Package Size: 29.52516.5cm/11.619.846.5in.