Image is Representational - See Manufacturer Specs | DC Fan Axial Ball Bearing Voltage: 24V Flow rate: 100.1CFM Noise: 45dB Dimensions : 119 X 119 X 32mm A DC tubeaxial fan with dimensions as 119 mm(Length)x32 mm(Width)x 119 mm(Height) Voltage: 24VDC a flow rate of 100.1 CFM Rated power : 5W Noise level: 45 dBA and having ball bearing.