Dimensions: 120x120x38 mm ( 4.72x4.72x1.5 in ); 110 to 120V AC; Package includes: 1 Piece fan include fan grill and mounting screws & nuts; 1* Power Plug1*Wiring head Designed for projects that requires cooling or ventilation; or as a replacement fan for various products. Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright. Under 50Hz; the Speed is 2600RPM; Airflow is 109CFM; Current is 0.35A; Power is 25W; Noise is 40dBA Under 60Hz; the Speed is 2900RPM; Airflow is 118CFM; Current is 0.26A; Power is 19W; Noise is 41.6dBA