Air pressure pump 601 DC: 3V, Output Flow: 1.05L/min DC: 4.5V, Output Flow: 1.4L/min DC: 6V, Output Flow: 1.5L/min DC: 7.5V (superstandard), Output Flow: 1.75L/min Air Pump Parameter Direct Current Working Volts Air pressure pump 601 Load Current A Power W Vacuum Degree Flow L/min mmHg KPa mbar 3 0.50 1.5 135 18 180 0.4 4.5 0.50 2.25 263 35 350 1.2 6 0.50 3 270 36 360 1.7 7.5 0.48 3.6 278 37 370 2.1 9 0.46 4.1 278 37 370 Contrast with Standard Air Pressure 760 101 1013