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In very low humidity conditions the photosynthetic process within the plant slows and this leads to stress
heavy feeding plants
of fertilizer per gallon of water
208-240VAC
Active Air Duct Fan Speed Adjuster In very low humidity conditionsHydrofarm's Fan Speed Controller was designed especially for centrifugal fans. This means it will help prevent damage to fan motors, ensuring longer life. (Meant for use with brushless motors, and all Hydrofarm inline fans, not booster fans) It will correctly and precisely adjust the speed of centrifugal fans. These controllers are more sensitive than any on the market, and are compact and built to last. Features Internal electronic auto resetting
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