uvb-radiation

  1. L0wbob2017

    Lighting Summary on the influence of UVB-radiation on cannabis

    !!!! Before you start reading this thread I recommend reading this security warning! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!! Ultraviolet radiation...
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