How many watts for veg?

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Coltfortyfive

New Member
I have a 4x4 area that will be used for veg only. My friend has a 190 watt nextlight veg 8 led that he will sell me for a discounted price. will this work for the space or do i need more light?
 
90'sStoner

90'sStoner

Well-Known Member
That wattage is a bit on the low side for that space. A rough target would be between 25-40 Watts per square foot
 
90'sStoner

90'sStoner

Well-Known Member
Coltfortyfive said:
Even for strictly veg? I thought you could get away with less watts
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Yea the Watts per foot is a rough guide. But in my experience, your node spacing will be bigger as they stretch for the light and your branches will be thinner/weaker for the same reason. Large internode spacing and thin stems don't make for a bumper crop, even if ya flower under a much stronger light, the structure of the plant is built in veg. It sucks to hear but it is what it is
 
GroBud

GroBud

Well-Known Member
Coltfortyfive said:
I have a 1000 watt de for flower. This is for veg
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What brand led probably isn't actually 1000 watts if it's a blurple style. If it is that's too much for a 4x4. I use a ROI-e720 in a 4x4 and that's more than I need. About 600watts is all you need in a 4x4 from a quality led not blurple. Blurples you need around 50 to 60 watts. Sqft quality led you can get away with 30watts a sqft I prefer 40 to 45 watts a sqft. You'll only need about 350 watts to veg in a 4x4. Multiply your grow space and divide that by lights actual wattage. 4x4=16 720÷16=45watts a sqft. I say actual wattage because the blurples list their equivalent wattage. Like 1000 watt equivalent but they'll only draw 165 watts from the wall ( example )
 
C

Coltfortyfive

New Member
GroBud said:
What brand led probably isn't actually 1000 watts if it's a blurple style. If it is that's too much for a 4x4. I use a ROI-e720 in a 4x4 and that's more than I need. About 600watts is all you need in a 4x4 from a quality led not blurple. Blurples you need around 50 to 60 watts. Sqft quality led you can get away with 30watts a sqft I prefer 40 to 45 watts a sqft. You'll only need about 350 watts to veg in a 4x4. Multiply your grow space and divide that by lights actual wattage. 4x4=16 720÷16=45watts a sqft. I say actual wattage because the blurples list their equivalent wattage. Like 1000 watt equivalent but they'll only draw 165 watts from the wall ( example )
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I have a 1000 watt de HPS high pressure sodium light that im using for flower. My question was will 190watts of fullspectrum led be enough for a 4x4VEG ONLY
GroBud said:
If your stretching like that lower your light, I only veg under 192 watts in a 3x3 for 21 watts a sqft under a t5 with eye hortilux power veg bulbs.
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Thanks for the reply. This light would be for veg only and it is full spectrum not blurple and it draws 190watts from the wall. For flowering i will be using a 1000 watt HPS
 
GroBud

GroBud

Well-Known Member
Coltfortyfive said:
I have a 1000 watt de HPS high pressure sodium light that im using for flower. My question was will 190watts of fullspectrum led be enough for a 4x4VEG ONLY


Thanks for the reply. This light would be for veg only and it is full spectrum not blurple and it draws 190watts from the wall. For flowering i will be using a 1000 watt HPS
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1000 watt hps will be too much mine can't take the 720 until the last few weeks of flower. If you do run the 1000 you'll need co2 and an air conditioner, my house ac barely keeps 720 at the plants canopy at a decent level.
 
GroBud

GroBud

Well-Known Member
Never will those be enough, 55-110 watts will need 3 of those to veg under 6 of those to flower under at the 110 watts and the diodes used are doller tree items.


The led grow light output wattage is 55W-110W,we choose samsung leds with high lumn&ppdf,We suggest use it for seeding cultivation stage .If your growing area only 3x3ft,you can use 650W led grow light from seeding to blooming stage.

The QBCC800 led grow light output wattage is 78W-80W,we choose samsung leds with high lumn&ppdf,We suggest use it for seeding cultivation stage .If your growing area only 5x5ft,you can use 800W led grow light from seeding to blooming stage.

The QBCC850 PRO led grow light output wattage is 85W-90W,we choose samsung leds with high lumn&ppdf,We suggest use it for seeding cultivation stage .If your growing area only 6x6ft,you can use 850W led grow light from seeding to blooming stage.

The QBF1000 RPO led grow light output wattage is 105W-110W,we choose samsung leds with high lumn&ppdf,We suggest use it for seeding cultivation stage .If your growing area only 8x8ft,you can use 1000W led grow light from seeding to blooming stage.

The BAR1200 led grow light output wattage is 100W-110W,we choose samsung leds with high lumn&ppdf,We suggest use it for seeding cultivation stage .If your growing area only 8x4ft,you can use 1200W led grow light from seeding to blooming stage.
 
Three Berries

Three Berries

Well-Known Member
I'm quite happy with them. Veg came in at 8 weeks and I only change to 12 hr because ran out of height. I'llmove the two plants and the two lights into the flower room. I'll add two 50 wat LED full specs.

I used one of these until the girls got some legs and got about 8" or so, then went to two. Currently all the way to the top and I've got about 8".

They pull about an actual 60w each, 70w with the reds turned on.
 
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