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.