A Question On Lighting And Amount
- Thread starter phil4567
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Saerimmner
Well-Known Member
well there is a kind of ideal lumens per square foot rule but for the life of me i cant remember the amounts but you could View attachment 1521586easily fit 20-30 under that lot, also when you find out the lumes/sq ft thing this should help you work out how many you can have under it/them View attachment 1521585
sso
Well-Known Member
the maximum is usually considered 10 000 lumens per square foot.
though sometimes 7000 without co2.
by personal experience its not quite true, you do see increased growth over 10 000, even without co2, but its miniscule enough not to worth the effort of cooling that extra light. though i have not tried those figures with co2 in a enclosed enough environment.
though sometimes 7000 without co2.
by personal experience its not quite true, you do see increased growth over 10 000, even without co2, but its miniscule enough not to worth the effort of cooling that extra light. though i have not tried those figures with co2 in a enclosed enough environment.
Truth B Known
Active Member
id do them in an 8X8 area, get large hoods and do 9 5gal root pots under each.. ( but i'd go with 1000's 
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xXOnyxXx
Well-Known Member
whats the optimal distance for a 600hps from the tops? ... its in a yeildmaster2 w/6" 485cmf fan ... heat is no problem .. but if get to close 12" the tops of my plants get yellow looking, like the light is trying to bleach em, when i move it back up to around 24" from the tops they come back green.
the bloom room is 30"d x 46"w x 8't
the bloom room is 30"d x 46"w x 8't
cervezacorona
Active Member
hi im thinking on steping it up a little im gonna use 4x 600w high pressure sodium lights in a room. wot would yous think in amount under that amount of light thanks for any feed back
13000 lumens per square foot optimal. I base this on all the seed companies and other growers use a 1000 watt HPS in a square meter tent,
or a space that equals a square meter. 1000 watt HPS = 140000 lumens. Square meter is 10.7639 square feet. 140000 divided by 10.7839 =
13006 lumens. So 4X 600 watts, @ 95000 lumens each, I'd go with 29.21 square feet to maximize lumens, and space. Remember, after the
1st 12", you lose 1/2 your lumens per each 6" thereafter. Make sure if you use HPS, especially 2400 watts worth, get some pretty good active
ventilation.
And, 1 plant per square foot. I hope this helps.
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