i stumbled on this link & found it very use full
so i hope it is ok to share with you all?
http://marijuanagirls.com/MarijuanaF...ide.html#c13_6
there is one section that says
Position 400 watt HID lamps 18 to 30 inches above plant tops, and 1,000 watt lamps 30 to 42 inches above the tops. During flowering, flowers may "run" rather than form in compact buds if lamps are positioned too close to the plant tops, particularly when using HPS's.
does any one else try this??
i am gonna lift my light up from 12" to 20" from the top of the plant,
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