upgrade from 400w to 600w got ??'s

Weredabluntsat said:

I have 9 plants under a 400 watt they r in veg right now. About 20 in tall. How tall should I get em before I put em into flowering?

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richinweed said:

here is a thought ..keep your 400 and add another 400...doesnt add much wattage and if you gettin 3 or 4 oz from one 400 ...you should double that with two....lol

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missnu said:

I am confused on this gpw thing...I mean is that for the whole grow, or per plant? Does it matter how long you veg, because that makes a big difference on the yield...so do you count all the plants flowered at the time with the light, or is the gpw per plant...I get 3 oz per plant if I do 4 plants...and total is 330 something...I use a 400w so if we measure the whole grow I am going awesome...but if it is per plant then I am doing kinda bad...lol

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full of purple said:

get a dimmable ballast veg with 400w mh and flower with 600 hps
for veg 400 watts will cover a 5x5 area for flower a 600w will cover a 4x4 area

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whitegato777 said:

thats with a 400w lamp right?

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