Seedlings/400W HPS Light Question

420weedman

Well-Known Member
how far should the 400W HPS Light be from the tops of the plants from day 2 til harvest? thanks

when they are seedlings , 3 feet away from tops.
i have a aircooled reflector and burned the shit out of my seedlings by putting the 400 mh light about 14" away
i have it at 3 feet now and they are better

i guess when the plant gets bigger you can start putting it 12" away
 
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