Specifications: 1) Voltage: 12, 24, 48V (DC); 110, 220V (ADC) 2) Rated voltage: 7 - 240V 3) Power: 10 - 35W 4) Air flow: 198 - 453cfm 5) Speed: 1900 - 3650rpm 6) Noise: 30 - 70dB