How big of a grow tent for 4 autos?
- Thread starter jfarrismu
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Nutty sKunK
Well-Known Member
All depends on what lighting you’re able to afford dude
jfarrismu
Well-Known Member
Let's say a 1000W LED? I'm thinking Mars Hydro
Nutty sKunK
Well-Known Member
Is that actual draw power from the wall? I’m confused with LEDs and there power suggestions
jfarrismu
Well-Known Member
The light I'm looking at would be rated at 1000W for LED output and draws 150W from the wall. I'm trying to see if I could somehow finagle 4 autos into a 2'x2' tent. It says it's supposed to replace 250W HPS
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Jules1976
Well-Known Member
Mars don't make a light that powerful I don't think the ts 1000 draws around 130w frome the wall but the sp150 is nearly the same both are around the same price bothe will do 2×2 but no bigger really
Nutty sKunK
Well-Known Member
100w per plant is ideal. You could but expect about an oz or so off each at best.
Obviously more space the better. Think, you can always upgrade your light if you like growing. Saves you buying a new tent if you go with a 3x3 or 4x4 if space/budget permits
twentyeight.threefive
Well-Known Member
Properly grown autos are not smaller, no.
OP I'd suggest photoperiod plants for your first grow.
Zogs
Well-Known Member
I'm in Canada so I'm limited to 4 plants. A 3x3 space with four 3g pots works well for that and leaves some room for fans humidifiers ect. I stagger the grow allowing extra breathing room as well. Don't be fooled by the silly naming schemes light companies use like "1000".. They are in no way equivalent to 1000w. Look at the wattage drawn from the wall. In most cases the "1000 branding" is about 100 watts. A light like that will work well for 1 plant maximum 2. 100w light per plant yields me about 3-6 ounces each auto flower plant depending largely on genetics. Personally I'm not a big fan of the Mars hydro lights. Check out the "Migro" youtube channel. He does an amazing job giving unbias lighting reviews.
jfarrismu
Well-Known Member
But an incandescent bulb pulling 100w from the wall will make less light than an LED pulling 100w from the wall. There is an efficiency factor at play beyond just the watts pulled from the wall
toastedleaf
Well-Known Member
I've got 4 photoperiods in a 3x3, not much room to fit anything else, go for a bigger tent if space/bidget allows
Zogs
Well-Known Member
Yea, I just didn't want to do a huge write up. That's why I pointed you to Migro. Most of the new led's coming out right now are using the highly efficient samsung lm301b/h diodes. The mars light you are currently looking at does not. I made the assumption you were going to use a led not a incandescent bulb. What I said above is still correct, their branding of "the same as 1000 watts" is still not correct. To keep it simple, 100w of a light using lm301 diodes is going to grow 1 plant very well.
VincenzioVonHook
Well-Known Member
Four in a 2x2 is going to be a serious struggle. This is two autos at day 40 from sprout in a 4x2 tent.
Nutty sKunK
Well-Known Member
Nice plants! The only way to fit more plants in a smaller space is to limit pot size. A 1 gallon pot will produce roughly a 2ft plant untrained
jfarrismu
Well-Known Member
Migro lights, I will look that up!
I agree the manufacturer (from what I've read in total) is probably exaggerating their output, but it sounded like you were trying to compare lights based solely on what they pull from the wall. I was trying to say that two lights might pull the same amount from the wall but still produce very different lumens as output
Zogs
Well-Known Member
Shane from Migro makes great lights too, but his unbias reviews and par maps of other lights is invaluable.