iPower GLFANXINLINEEXPC4 4 Inch 118 CFM Inline Duct Fan with Variable Speed Controller Ventilation, Quiet HVAC Exhaust Blower, 4" Fan & Speed, Black Pest & Disease Control Plant Wellness Improved spectrum DE lamps used

Improved spectrum DE lamps used in this fixture focus on the red component for increased photosynthetic response

Multifunctional: This ventilation combo removes heat and eliminate the undesirable ill-smelling odors in the grow tent to solve air delivery problems without major system rework or expense

as well as aid in the creation of essential oils

Use at first sign of budding and throughout the flowering/production period

inexpensive

iPower GLFANXINLINEEXPC4 4 Inch 118 CFM Inline Duct Fan with Variable Speed Controller Ventilation, Quiet HVAC Exhaust Blower, 4" Fan & Speed, Black Pest & Disease Control Plant Wellness Improved spectrum DE lamps usedSpecifications: Diameter: 4inch; Air flow: 118 CFM; Wattage: 28W; Noise level: 30db. 110V standard household plug; Pre wired 5. 9 Feet power cord. Max Ambient Temp is 104? 40? Details: One control switch for 3 settings: variable speed, OFF, HIGH, MED, LOW. To avoid the risk of burning out the fan motor, controller does not adjust below 50% Easy installation: Removable duct ends with locking screws for quick removal and easy maintenance and you can put