SPL 1000 STSP Variable Fan Blower Speed Controller Hydroponics Inline Duct Vortex Exhaust Control Voltage: AC120V, 60Hz 15A Max. Power: 1800W Fuse: 15A Dimension: 5-1/2"L x 2-2/5"W x 2-2/5" H Power Cord: 31-1/2"