Apollo Horticulture 6&rdquo; Inch 440 CFM Inline Duct Fan with Built in Variable Speed Controller 6" Ventilation Inline Vent Fan with Built-In Speed Controller Air Movement: 440 CFM, Noise Rating: 75 +/- 1.5 db Power: 120 W at 1.10 A, Fan Speed: 2630 RPM Package Includes: Vent Inline Fan, Mounting Bracket, Instructional Pamphlet