Light distance

Discussion in 'Growing Marijuana Indoors' started by Gebeau, May 7, 2011.

  1. #1 Gebeau, May 7, 2011
    I just got a growzilla hood. I have a 1000w HPS and a 1000w MH in it. I know the rule of thumb with 1000w is 30" away from top of plant. what is it for my light?
     
  2. #2 Tihspeed, May 7, 2011
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  3. #3 Gebeau, May 7, 2011
    the thing is this. it's 2000w in one reflector so do i increase that distance. the chart goes to 1000w.
     
  4. #4 Tihspeed, May 7, 2011
    how hot is it when you put your hand under the light at 30 inches?

    got a temp reading?
     
  5. #5 Gebeau, May 7, 2011
    I do. How hot is too hot? What is the perfect temp? This is a project I will be starting soon.
     
  6. #6 Ccoastal, May 7, 2011
    Last edited by a moderator: Mar 15, 2016
    Weeds ideal growing temp is around 75*F but it has been shown they will speed up metabolism up to 87*F any higher than that and water is exhausted from the leaves faster than it can be brought up, 75 is deff ideal so u have a lil play room either way
     

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