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Watts per seedlings


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#1
DoctorDank

DoctorDank

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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?

#2
weedfarm

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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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