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Watts per seedlings

  • by DoctorDank
  • Dec 25 2010 08:23 PM
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Posted 25 December 2010 - 08:23 PM

If you were to grow 75 plants from seed to seedling (2-3 weeks) how many watts of HPS light would you need? Would 2 400 watt HPS lights be enough seeing as they are only going to be getting 5-10" tall?
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  • PipPipPip
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Posted 26 December 2010 - 02:45 AM

5-10 is not a seedling. seedlings need no more than a fluro. After a couple weeks when they are ready, then one 400 may work depending on how you pack them in. 2 may be better.

I just judge my plants when they can go to HID. I believe the rule of thumb is when they have their 2nd set of leaves




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