Light intensity for flowering

amneziaHaze

Well-Known Member
Ive cut the plastic covers off those 9w led household bulbs and messured the ppfd off them..
Those things push out well over1k ppfd at 2-3 inches..
Enough to hurt my seedlings with them before having a meter..
True but how wide does it go?
And yes seedlings go to 20k maybe i was talking about full on flower
 
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