LED grow light coverage for 4*3 tent

VincenzioVonHook

VincenzioVonHook

Well-Known Member
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.
 
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Emmanuel Sadiki

Member
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
 

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VincenzioVonHook

VincenzioVonHook

Well-Known Member
VincenzioVonHook said:
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.
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Just realised it was 4x3 METER. Jealously evolves lol.
 
VincenzioVonHook

VincenzioVonHook

Well-Known Member
Jjgrow420 said:
so approx 13x9 ft
id be looking at other options instead of led. thats gona be pricey with led for adequate coverage
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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.
 
lusidghost

lusidghost

Well-Known Member
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.
 
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