MODEL: KFB1248GHS Voltage: 48V Current: 0.76A Size: 180*170*80MM Air volume: 334.79CFM Wind pressure: 47.86mmH2O Bearing method: double ball Noise: 67.5dBA Speed: 3300RPM 4-wire with speed measurement for vehicles, refrigerators and other equipment. The nominal current is 0.76A, and the actual running test current is about 0.5A, and the air volume is large. The fan voltage can be operated at 20V. The test is as follows: Voltage 20V = current 0.2A. Voltage 24V = current 0.26A. Voltage 36V = current 0.38A. Of course, when the voltage is low, the air volume is small and the wind is very light. Dimensions 180mm x 175mm x 75mm and weighs approximately 800 grams.