hid light

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todoobie

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16 square( 4x4) area, is max. for a 400 watt hid light. Would a 3x5 shape grow area be to much for the 400?? shape??
 
my area is about 2 x 3 and 400 just barely cuts the cake...
but i also have a really old ballast with a conversion bulb that runs at 360 actually.. but 400 w/ a 3 x 5 area will work... for a start IMO...
based on if your flowering I just realized....

are you vegging/flowering??
 
400 for 16 square ft of veg is good - but for flower, you'd be in the minimum.. in my opinion/experience..
 
For the vegging your ok the 400w MH will due fine, but for flowering you need to be pushing 5000lumens per sq. ft. at a minimum which a 400w will not provide u. your around 1000 or so lumens per sq. ft. short to be at the minimum for flowering.
 
and that's how a community information network is supposed to work. :aok:
what a golden thread... :rolleyes:
i was half right..
 

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