Popular uses include garage, greenhouse, server room, industrial machinery, arcade systems, and more ^^ Dual-ball bearings have a lifespan of 50, 000 hours and allows the fans to be laid flat or stand upright ^^ 1 Piece fan include fan grill and mounting screws & nuts; 1* Power Plug ( 59 inches) 1*Wiring head ^^ This high speed fan move a lot air and is suitable in applications where a louder noise level is tolerable ^^ Under 60Hz / 110V-120V; the Speed is 2700RPM; Airflow is 238 CFM; Current is 0.46A; Power is 32W; Noise is 50 dBA