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500K Lamp 2
pH high and low limits
Four Parameters
Reduce heat stress and improve air quality with Schaefer's uniquely designed circulation fans
PowerHouse Convertible Ballast Terp Derp so you can be assuredUse halide for growing and sodium for flowering, all in the same system! Hydrofarm's Powerhouse convertible ballasts feature engineered transformers made to the exacting American National Standards Institute specifications. They are designed to drive either halide or sodium bulbs properly with separate wire leads. They are marked according to UL standards for use with either bulb. We pair this engineered unit with our heavy duty multi pole switch for
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