Apollo Horticulture 8&rdquo; Inch 740 CFM Inline Duct Fan with Built in Variable Speed Controller 8" Ventilation Inline Vent Fan with Built-In Speed Controller Air Movement: 740 CFM, Noise Rating: 76 +/- 1.5 db Power: 195 W at 1.62 A, Fan Speed: 2860 RPM Package Includes: Vent Inline Fan, Mounting Bracket, Instructional Pamphlet