Marijuana Growing - View Single Post - High Pressure Sodium (HPS) or Metal Halides(MH) ?

Thread: High Pressure Sodium (HPS) or Metal Halides(MH) ?

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11-19-2008, 05:18 PM

NoDrama

Mr.Ganja

Mr. Ganja

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Its the HPS bulbs that have the extra blue spectrum lights. Agro sun i think does this. They work well, most people do not notice much effect over a standard HPS. MH for veg , HPS for flower or just HPS all the way. Using the MH for veg will get you tighter node spacing and ultimately denser buds.

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