Noob here with a lighting question

coreywebster

Well-Known Member
I just read this and from what it said I'm actually pretty close to what I need with 2 of these leds
From that site.

Say you have a 3×3 grow tent. That makes 9 square feet. At 30 watts per square foot you would thus want 270 watts in total. If you went up to 40 watts per square foot, you would want 360 watts in total

30w per square foot is top end LEDs , 40 - 50w would be what you want to aim for with the ones you have.
 

Jaystank

Active Member
Indeed. You should be fine.

Do more reading and research, including forums threads like this, to plan for your next light.

Hanging height limitations and heat management are a couple varaiables to consider...
I mean I know I'm not gunna get pounds but I'm also not trying to waste my seeds and only get a miniscule amount
 

Jaystank

Active Member
From that site.

Say you have a 3×3 grow tent. That makes 9 square feet. At 30 watts per square foot you would thus want 270 watts in total. If you went up to 40 watts per square foot, you would want 360 watts in total

30w per square foot is top end LEDs , 40 - 50w would be what you want to aim for with the ones you have.
So I'm 100 and some change away from what I would need
 

Gullett79

Active Member
If I bought a third one and ran all 3 I'd be in the ballpark of what I need or should I just get a good mars hydro light?
From my time reading forums and getting feedback from some great people out here, you need a minimum of 30w per square foot with led. Im shooting for 40-45 per with my DIY build I'm working on. Those lights are each 200w actual. For a 3x3, you're just fine. If you go to a 4x4, you definitely should consider upgrading lights. If I had know 2 or 3 years ago what I know now, I wouldn't have waited til now to upgrade. You're going to be leaving alot on the table using those, but if you're not trying for massive hauls, they will do just fine.
 

TintEastwood

Well-Known Member

Lighting is the easy part.
Managing temperature and humidity, just as important, not as easy.
 

Jaystank

Active Member
From my time reading forums and getting feedback from some great people out here, you need a minimum of 30w per square foot with led. Im shooting for 40-45 per with my DIY build I'm working on. Those lights are each 200w actual. For a 3x3, you're just fine. If you go to a 4x4, you definitely should consider upgrading lights. If I had know 2 or 3 years ago what I know now, I wouldn't have waited til now to upgrade. You're going to be leaving alot on the table using those, but if you're not trying for massive hauls, they will do just fine.
I'm pretty sure there 110w actual each wheres you get 200 each
 

.Smoke

Well-Known Member
also regardless I'll keep that in mind for my second tent I probably will go that way but I am looking for a answer on this would 2 of these LEDs be overkill?
No.
Overkill for a anything I've tried has been over 80k LUX of HPS light over an entire tent. (Currently run 81.25w/sq ft. hps)

So,
220w of LED over 9 sq ft = 24.44444 watts.
Not even close to overkill.
Put 2- 100 watt regular light bulbs in the tent. Boom. There's your 2 Led's.
 

Jaystank

Active Member
No.
Overkill for a anything I've tried has been over 80k LUX of HPS light over an entire tent. (Currently run 81.25w/sq ft. hps)

So,
220w of LED over 9 sq ft = 24.44444 watts.
Not even close to overkill.
Put 2- 100 watt regular light bulbs in the tent. Boom. There's your 2 Led's.
So if I get the other light I posted and ran all 3 that'd be 230+220=450 that'd out me at 50w per square foot
 

.Smoke

Well-Known Member
So if I get the other light I posted and ran all 3 that'd be 230+220=450 that'd out me at 50w per square foot
Much better.
Most Led guys around here would more than approve I believe.
(Again, I'm an hps guy so don't quote me.)
I've always found more light (available) never hurt...
 

Jaystank

Active Member
Much better.
Most Led guys around here would more than approve I believe.
(Again, I'm an hps guy so don't quote me.)
I've always found more light (available) never hurt...
On amazon it does say its actual draw in 200w so 2 would be 44w per square foot i think im in good shape i think my brother has a extra 600w mars hydro LED idk the actual draw ill have to check it out and may throw that in and I should be good
 

Gullett79

Active Member
On amazon it does say its actual draw in 200w so 2 would be 44w per square foot i think im in good shape i think my brother has a extra 600w mars hydro LED idk the actual draw ill have to check it out and may throw that in and I should be good
Just keep in mind, by the end of a 2nd run, your lights will have probably already lost 25% of its output. My very 1st grow ever, I ran 3 in aeroponics and had 17 dry ounces, 2nd run with 3 was half that, and 3rd was even less. I still run 4 of them until I have time to finish my build, but you'll definitely notice decreases after each grow. If you're going to stick with LED, which I would recommend, definitely dont keep wasting money on cheap ones and look into going DIY or spending the money on an HLG or Timber set up.
 

.Smoke

Well-Known Member
Keep both (if they have veg/bloom switch) ON ALL THE TIME and you'll be a happy harvester here in a few months.
But remember, "more light=bigger buds" :)
 
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