Double ball bearing 5015 blower fan-high speed versionHigh-quality double ball bearings, more stable, longer life, suitable for continuous work. The usage time is 24 hours/day. No maintenance required. But lubricating oil can further reduce noise.Rated voltage: DC 24VColour:BlackMaterial:plasticSize:50x50x15mmPackage Contents:4 x blower cooling fanOnly the above package content, other products are not included.Note: Light shooting 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.
