High pressure (full pressure 7.5KPA) large air volume (240 liters / minute) low noise (45M (A) 1KPa distance 1M far) long life(run 4 hours, stop 30 minutes life up to 25000 hours) The motor movement is designed with a hollow cup structure High efficiency, high speed, high stability This brushless fan has stable start, small size, low noise, low temperature rise, long service life, high efficiency, accurate accuracy, energy saving and environmentally friendly materials. Product Usage:Sine wave drive three-phase brushless motor, suitable for --- air cushion machine, fuel cell, ventilator air supply, modified car seat cushion air supply, electric heat is sent air, high-grade soldering station smoke, sanding. Colour:As Shown Material:plastic+metal type: 12V/ 24V Package Contents: 1 x Mini Centrifugal Turbo Fan 1 x drive Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.