VIVOSUN Z6 6 Inch Inline Duct Fan, 440 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventilation, Black Description Features: Energy-Efficient Ventilation: This blower with a fan speed of 2450 RPM creates an air flow of 440 CFM; It combines the features of both axial and centrifugal fans to achieve optimal ventilation Quiet Operation: The sturdy leather can reduce sound or vibration; Tight and precise construction eliminates rattling; The centrifugal impeller provides powerful airflow and has a low noise of 50 dB Adjustable Speed: This centrifugal fan is equipped with a stepless speed controller to enable the fan to run at different speeds; You can adjust it to the desired airflow level Easy to Install: This duct fan comes with a mounting bracket that the fan can be lifted by rope hangers; Quick installation and easy maintenance by simply removing the locking duct ends Versatile Applications: Ideal for air cleaning and temperature control in industrial, home and garden planting ventilation applications Product Details: Brand: VIVOSUN Color: Black Electric fan design: Blower Power Source: Electric Style: 6'' with Speed Controller Product Dimensions: 9.3"D x 11.4"W x 5"H Room Type: Kitchen Special Feature: Lightweight Recommended Uses For Product: Lighting Noise Level: 50 dB Brand: VIVOSUN Color: Black Electric fan design: Blower Power Source: Electric Style: 6'' with Speed Controller Product Dimensions: 9.3"D x 11.4"W x 5"H Room Type: Kitchen Special Feature: Lightweight Recommended Uses For Product: Lighting Noise Level: 50 dB Wattage: 135 watts Finish Type: Painted Air Flow Capacity: 440 Cubic Feet Per Minute Blade Length: 6 Inches Speed: 2450 RPM Voltage: 120 Volts Item Weight: 4.63 Kilograms Indoor/Outdoor Usage: Indoor Specification Met: certified frustration-free Control Method: App Blade Material: Plastic Item Weight: 10.18 pounds Manufacturer: VIVOSUN Item model number: CECOMINOD072448 Is Discontinued By Manufacturer: No