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Dual Arc Bulbs

Discussion in 'First Time Marijuana Growers' started by ZerK, May 26, 2009.

  1. If you were to buy a dual arc bulb that contained both HPS and MH which would give a wide spectrum of light for growing, would using a bulb with both HPS and MH prolong the growing period due to the MH for vegging and the HPS for budding running simotaniously?
     

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