LED grow light coverage for 4*3 tent

[Emmanuel Sadiki]

Afternoon
I just got a 4*3 meter tent, I need help as to how many lights or watts I need when growing cannabis, for both vage and flower

 

[VincenzioVonHook]

Depends what you want to spend. I'd say the baseline minimum for an LED for a 4x3 would be something like a mars TSL2000w, at 300w. Two cheap 400w HID kits spaced appropriately would do the job as well.

Comparing ppfd plots is probably the best bet for direct comparisons. You wanna aim for around 200-300umol/s for seedlings and early veg, 400-700umol/s for steady veg, and between 700-1200umol/s during flower. Anything after that tapers of in efficiency.

For a reference, full pelt sun is around 2000umol/s.

 

[Emmanuel Sadiki]

I already have the 220w LED grow lights with full spectrum, do you think two of these can do good job, I'm thinking of buying another light which can help the 220w, I'm moving from HID to LED, I grew great plants with the 220w on a small space, so I'm wondering I'm many Watts I need to full light up the 4*3 meter grow space in a form of LED lights

 

[Hugo Phurst]

Afternoon
I just got a 4*3 meter tent, I need help as to how many lights or watts I need when growing cannabis, for both vage and flower

That's a big tent.
That's 130 sq ft @ (minimum) 25w/sqft that's 3,300w Led to 50w/sq ft = 6,500w

Good luck

 

[Hugo Phurst]

PS - I'm switching to led too, girls are lovin the quantum boards.

 

[1212ham]

Afternoon
I just got a 4*3 meter tent,

4*3 meter tent?
Maybe 4.3?

 

[Herb & Suds]

My question is who even sells a four meter by three meter tent?

 

[Hugo Phurst]

My question is who even sells a four meter by three meter tent?

Gorilla I do believe.
There's even modular tents out there.

 

[VincenzioVonHook]

Depends what you want to spend. I'd say the baseline minimum for an LED for a 4x3 would be something like a mars TSL2000w, at 300w. Two cheap 400w HID kits spaced appropriately would do the job as well.

Comparing ppfd plots is probably the best bet for direct comparisons. You wanna aim for around 200-300umol/s for seedlings and early veg, 400-700umol/s for steady veg, and between 700-1200umol/s during flower. Anything after that tapers of in efficiency.

For a reference, full pelt sun is around 2000umol/s.

Just realised it was 4x3 METER. Jealously evolves lol.

 

[Emmanuel Sadiki]

it is 4 Meter long and 3 meter wide and three 2.5 meter tall. thanks for your advise, however I wanted to know

4*3 meter tent?
Maybe 4.3?

it is actually 4 meter long and three meters wide and 2.5 meter tall

 

[Emmanuel Sadiki]

Just realised it was 4x3 METER. Jealously evolves lol.

thanks for your advise, it is in fact 4 meters long and 3 meters wide

 

[Emmanuel Sadiki]

My question is who even sells a four meter by three meter tent?

I constructed the tent

 

[Jjgrow420]

so approx 13x9 ft
id be looking at other options instead of led. thats gona be pricey with led for adequate coverage

 

[VincenzioVonHook]

so approx 13x9 ft
id be looking at other options instead of led. thats gona be pricey with led for adequate coverage

For sure. The expense is going to be insane. But then the power requirements for hid is terrifying. I'd look at something like a 400-600w hid per sq metre to start if you aren't looking to throw your life's savings away, only going up from there.

 

[1212ham]

it is actually 4 meter long and three meters wide and 2.5 meter tall

You need 4000 actual watts or more of good LED for flower, around half that for veg.

 

[lusidghost]

You should play this on a loop throughout the grow and see what happens.

 

[lusidghost]

You don't need to fill up the tent if you can't afford it. Buy as many LEDs as you can and then add more later.