Frame and Impeller: Plastic(94V-0),PBT Bearing Type: Sleeve bearing & Ball bearing Function Range: FG RD PWM reversible IP58 IP68 Leadwire: Red Wire Positive(+), Black Wire Negative(-) Operating Voltage: 12V 24V 48V Tempetature Range: -200C to +700C Motor: Impedance Protected and Reverse Polarity Protected Bearing Type B.S: B.S Rated Voltage VDC: 48 Operating Voltage VDC: 28.0-56.0 Input Current Amp: 0.12 Input Power Watt: 5.76 Speed RPM: 2500 Max Air Flow CFM : 101.85 Max Air Flow  m3/min: 2.88 Max Static Pressure Inch-H2O: 0.26 Max Static Pressure pa: 64.63 Noise dB-A: 40.00 Weight g: 262.00