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hps help

Discussion in 'Grow Room Design/Setup' started by reshtafa, Jan 6, 2003.

  1. how far from the plant shuld i put my 400w hps light?
     
  2. I had mine about 18" from the tops...put your hand at the top of the plant and if the heat is too intense for the back of you hand then it's too hot for the plants.

    With a fan blowing blowing on the HPS or the tops you can move it closer.
     
  3. Put the light at the top of the grow room, what height have you got? HPS lights do not need to be close to the plants and there is no need to adjust them from germination to harvest, it is ideal if your room height is approx 6'
     

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