'nuff said!kasgrow said:I would use a 400 watt hps in an air cooled hood. A digital ballast would be even better because then you could use a mh for veg and hps for flower using the same ballast. You could get a switchable ballast also. I wouldn't use anything over 400 watt. You could use even less light depending on how much you want out of your garden and how fast. Everybody has different needs and limitations.
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