Switching to 1000w for flower after begged 2 months under 400w

Discussion in 'Growing Marijuana Indoors' started by slimjimham, Feb 7, 2011.

  1. #1 slimjimham, Feb 7, 2011
    Last edited by a moderator: Feb 7, 2011
    So I have 6 plants in a space already almost outgrowing their small place 3 days into flower under 400w hps.

    Is it worth going out and spending $500 for a 1000w light?
    Like how much more yield would I see? Remember I'm a new growing with the right stuff but I hit small pot holes.... My grow journal
    http://forum.grasscity.com/indoor-g...ntal-foss-clones-w-2-dank-seeds-new-post.html

    Like if I was going to get 6oz, should I expect 12 if I change the light?

    Heat is not an issue with the vented hood on half speed (420cfm so running roughly 1/2 that keeps it 68night-79day). I do think heat might easily be a prob in the summer though. I'm in an appartment legally growing but my size is 3'deep,4'wide and 7.5'high.

    So if I'm easily going to see 5oz more no questions asked it's obv worth it... What do ya think?
     
  2. 400w is really efficient, rumple gets 10oz-1lb off of 400w every time . the 1000w grows iv seen usually get 1.35-1.5 lbs.
     

  3. Pretty much yeah. 1000 w HPS is roughly 150,000 lumens compared to the 55,000 lumens of a 400 w. You definitely can double your yield, but it's up to your growing skills in order to max out what a 1000 w can give you.
     

  4. How many plants is that though?
    just wondering :smoke:
     

  5. 1000w is more efficient than a 400w. The highest efficiency is 600w.
     
  6. that was two plants. ive seen 8 oz off one plant under a 400w hps.
     

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