how much Lumens dos a plant need?

not to sure i think its about 50000k but look in the FAQ first

your crazy

5-7000 lumens psf the grow faq will tell ya 3000 minimum but you need 5000 min. 400w hps will do a 3x3-4x4 room

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supercalavagalisticexpialadankbitch... my styles tight like OJ's glove

will 3700 do for a while

you can veg with 3700 no problem just dnt streatch em and you could flower with it too just wont get the best yeild and maybe a lil fluffyness.......

26 watt cfl veg in my mother room

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supercalavagalisticexpialadankbitch... my styles tight like OJ's glove

3000 PER SQUARE FOOT is the minimal reccomended. It all depends on how many plants and how big your space is. Lower amounts will work but you will need many more to get anything harvestable. Lots of light is required in the flowering stage.

13 plants good bad?

13 plants is WAAAY to many for only 3700 lumens. That 3700 lumens will only effectively cover and 1 foot by 1 foot area in the veg state.

i thought thats what we were talking about 3700psf and if thats so and thats 3700psf over a 13sqft area than that means each sqft is getting 3700L and 13 plants would rock

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supercalavagalisticexpialadankbitch... my styles tight like OJ's glove