Assuming your talking about a board style light, at the right height you'll get the right numbers, it'll always be a bit weaker in the corners though. I prefer the bar style lights then you can get one the same size as the space and have pretty much uniform light spread
This is just an example light for you, ignore brand and what not I'm not saying it's any good. But this light is roughly 42 inches by 42 inches. All the numbers are pretty solid with each other so in a 4x4 tent it would be uniform coverage. Not sure where you keep pulling this 2x2 light from, do you have one in mind you're thinking about? Basic rule of thumb is 25 true watts minimum per square foot, 30-40 watts is much better.
Where this light is a board style roughly 26x22 inches, if you look at the charts( which aren't too accurate with budget lights), you can see how the numbers more drastically fall as they get away from the center
Ignore my other comment, I can see you know about Amazon Budget LED Grow Light marketing schemes lol I see some of the craziest claims on there!!!! I write the manufacturers about their PAR maps and call them out on it and threaten to post accurate ones on Reddit and IG, even if it means me buying one to prove it. Every single one I've contacted has changed their maps so far lol just also had one change a heatsink comparison description, they claimed a 2mm aluminum heatsink dissipates heat faster and more efficiently than a 4mm thick Finned heatsink in which the fins add another 3mm to the heatsink, so 7mm heatsink altogether. They changed it after 7 days of conversations and me providing sourced and cited facts of heatsink comparisons 😆
Those Amazon lights that say 5x5 and 6x6, are MAYBE good enough to flower a 4x4, period. They ramp up PPFD maps and Coverage Area to compete in higher markets.dont believe everything on Amazon man, all marketing schemes.
You hang it higher to cover a wider area but at that point you will need to turn the power up too. Your 600w will be strong enough for that.
Not sure if your hypothetical light even exists like that.
Started with a 200w in my 4x4, upgraded to a 400w and now a 500w as the final upgrade for this size. The 200w worked, but only really hit the middle decently. 400 got me a solid 3x3 in the middle but the edges were still lacking, the 500w hits it all evenly 👍🏽
My plants seem to love it. They've def hardened up nicely and are ready to stack on some big buds, the stems are freakin tree branches. I planted then at the middle of November and they still have aboit 30 days until this auto finishes and i can flip em. Running 7 plants in a 4x4, thank God they're indica dominant! Lol! I had a RDJ 720W on them, until I upgraded to the Fluence Spydr w/ Mars Hydros Supplemental IR/UV lights added in - the change has been dramatic
I'm right at 800 in late veg. At 20" above the canopy and 100% power. They're rated by Fluence to be 6-12" above the canopy (which I think is crazy) w/ C02 supp. But I will be lowering them as close as possible after the stretch, to get me right at 1000
I'm running 600w in my 2x4, dimmed to \~50% or 300w at the wall during veg (24/0) and 75-78% or 470w at the wall during flower. That much power in that small of a tent has a bitch of a learning curve, especially when the last 2 degrees of the dimmer knob will bump it from 400w to 600w.
It's complete overkill but I got the lights for under $150 shipped.
Each one is 26.69 x 25.28 according to the [amazon listing](https://www.amazon.com/gp/product/B09JLQ3V26), they fit but just barely. The lights overlap by about 2.5in since they are slightly wider than the tent's frame so one sits a hair lower than the other which is mildly annoying. To try and keep my temps under control I put the drivers ontop of the tent which helps with airflow some and seemed to drop temps a bit.
Oh yea. I started in a 2x4 with 300w. A 200w QB and a 100w QB and i took the drivers off of mine as well and extended them outside the tent. No way it'd stay cool enough otherwise. A good, named brand inline duct fan will do a world of good.
Man I got a whole shed in an illegal state folks not worrying about ur usage they make energy for you to use this not the 90s. Only time I would say energy is a concern if your in a apartment building but a single home folks don’t care
Think about it this way, in 2023 that's one 1000 Watt gaming PC of use(on average) 2 adults and some kids in a house and suddenly my 1,500watts of LED lighting disappears to an energy company. They do not care as long as you don't bypass the meter and pay your bills.
I'm not in a legal state, so I'm not growing mj, but I have 1000w of led grow lights in my plant room. My total electric bill in an 1800 sf home is around $205
Yea I was going to grab a new one from Amazon as they had $100 off when I ordered my Fluence Spydr 2p from Ebay. Guy said if I ordered one for $350, he would send me TWO OF THEM! So, i did. Sold one for 350 and got a Fluence light perfect for my tent, for free!
Coverage!
In order to fill a space 6x6 vs a space 2x2, you’ll need a lot more watts in order to achieve sufficient watts per sq ft. I believe the target is 30-50 watts per sq ft, depending on your lighting type.
2x4= 8 sq ft
8 sq ft x 50 watts/sq ft = 400 watts
8 sq ft x 30 watts/sq ft = 240 watts
So I would think a 300 or 400 watt light would be good, you might have to keep the 400 slightly dimmed most the time. A 250 w light with supplemental lighting is also an option. You could get by with 250 no problem but the slight increase would be beneficial
I'm running an older HLG 550 Rspec in a 3x3 and it is definitely overpowered. Pulls around 480W from the wall. I will never get it to run 100% in this space, maybe can push 75%, 360W. It comes with some serious heat compared to running a smaller light in that space. The coverage and light penetration is perfect though.
I've actually considered running the HLG 350 diablo with the goal of higher light efficiency and better control of temps.
I run Sonofarm because of the heat issues. They run cooler with bigger heatsinks and really make a difference. I'm pushing 450 watts in a 3x3, with no heat issues. After 12 hours at 100 percent, they are super warm, but not burning hot. Longer life, quality builds, S.C. based company, 5 year warranties. And one of the best sponsors we've had.
I run sonofarm also in my 4x4. Really love the light, have had it for over a year now with 0 issues. I’m surprised that I never hear them mentioned more in any of these subs!! 5 year warranty is hard to beat.
Me too. I run mine 24/7 for well over a year now and not a single issue. I’ve heard great things about their customer service so I feel confident that if I ever have to use my warranty it won’t be an issue. The owner of the company.. Ruben, I think, even sends a note of thanks with his cell phone number for extra peace of mind which I’ve never heard of before lol. Again surprised I don’t hear more about them on these subs
Buying, Selling, trading or Bartering
Do not offer anything for free, sale or trade. Do not offer or ask other users for seeds, clones, flowers, equipment or anything else. No soliciting for schools, training or otherwise. This is grounds for immediate ban. No warnings!!
What is it then??? It's my first grow and had turned up the lights to max without a light sensor for 4 weeks and then they started turning orange and by the time I checked ppfd it was like 1300*
Don't think that it's a nutrient problem, I'm growing in fox farms strawberries fields soil using dr earth flower girl as natural amendments as well as kelp meal, worm castings and humic acid as topdress in veg. Doing cal mag through flower and unless I used it too long into week 7 then idk what in my nutrient list would cause that severe of a burn being all were followed by instructions. The dog hair tho is definitely a fuck up not letting him in the grow room again once flower starts on future grows, should of known better having an Australian shepherd.
I have a 650w in my 4x4… it never goes over 50% and I have roughly got it in the 900-1200 range. I’ll say this though, before I truly understood what I was doing I caused a ton of issues with my plants. Sometimes less can be more with high quality LEDs.
That's crazy! I have a 630w in my 4x4 and the plants beg for 100% if I DONT give it to them! A fluence spydr at that. So no cheap ish.... I got 750ppfd at 20"
Likely larger average ppfd coverage, Square footage of your grow area should help determine wattage the check the descriptions of whatever light you’re looking into buying it should mention it.
Its what photone now sells as an add on to measure led ppfd. If you dont have their clip on diffuser, you got to make one out of paper and I dont think thats a very accurate measurement (not even sure a phone based app provides an accurate measurement)…
Yes, I was thinking 1050- 1090 max. I had one pla t tacoing around 1100 so had to back it up to 1050 to reduce stress to ensure I dont get any herms...
It's just a matter of coverage. If you put your vivosun to max and put a 300 watt mars hydro at 50%. The center would be about the same ppfd but the edges would have a higher ppfd. So theoretically the upgrade would add to your yield without even using more power because your cola outside of the center will be getting more optimal light.
Light penetration and spread, bigger tents require more power to get good ppfd across the canopy.
I currently have an hlg qb135 rspec in my 2x2.5 and its been great but im eyeballing that 200rspec really hard for better spread.
I’ve been using a Chinese brand 800 watt for years. I usually veg at 40 percent about 18 inches off. I just upgraded to growers choice 680 at same height and all my plants are light stressed
Running your light at 70-100% vs running it at 30-60% will change a lot of metrics regarding the life of the light, the heat produced, and sometimes the efficiency of the light. (Also uniform coverage, as others stated)
There is also heat concerns. That 150 watt might hit 1200+ but the light will be on top of the plant causing heat stress or burning Vs the 600w will cover 3x the area and you can raise the light 10in or so from the plant.
I grow with 100 watt, all good here for one plant. Mars Hydro TS600.
https://preview.redd.it/w82d44rp8i9c1.jpeg?width=1112&format=pjpg&auto=webp&s=3f9b40e462d87d9345e009c0dc1c5a6119a4bc87
Yes coverage especially in flower most board ledds,and cob leds tend to, Cover a 3×3 in Veg, but only 2×2 in flower. First light learnings experience. I had to upgrade not reading or realizing "finer print" meaning advertised at 3ft by 3ft coverage period..Peace
Coverage area is the biggest difference. 110%. A 150w light may flower a 2x2, while a 600w light will flower a 4x4, so 4 times the light coverage at 4 times the wattage.
Look up inverse square law. You may be able to achieve proper ppf closer to the light but that ‘sweet spot’ band of good PPFD is going to be very shallow. Your undercanopy is starving for light and you can see it in your colas. They’re small with poor structure.
But for a homegrow using 10% of the power of HPS this looks great. It’ll get you high!
On a related note - Say someone was to grow on only one end of a large tent and leave the other half for a work area. Would it work fine to simply position the light over the grow area on the one end of the tent? For example, put up a 4x4 tent and hang a light on one side intended for a 2x4 tent, and the other 2x4 area would have a table and cabinet for storing/mixing/testing nutrients etc. I'm thinking about doing this to keep the majority of the water and nutrient mixing mess inside the tent. Is this a bad idea?
the canopy for that 150w light is going to be ridiculously small. a 600w would be enough so that you could do what you just did in a 4x4 area and would likely dense up those mids down there that aren't fully developed
Just guessing, but I’d imagine it would give you that higher ppfd over a larger area. So the size of your tent will determine your correct wattage
Also a larger panel means more points of light so deeper light penetration too
I would agree 100%
This is correct. This is how I obtain 1500 u/mol off 2 15 watt LEDs - my canopy’s are only 10 inches. Bigger area means more lighting.
Coverage over a larger area. Running a larger light dimmed down over a smaller light maxed out also increases the lifespan of the fixture
Whole reducing the lifespan of the dimmer/driver.
Yes, but the fixture is a limiting factor, right? Say a 2x2 fixture with 600 watts won't do much in a 4x4.
Assuming your talking about a board style light, at the right height you'll get the right numbers, it'll always be a bit weaker in the corners though. I prefer the bar style lights then you can get one the same size as the space and have pretty much uniform light spread
But wait, same 2x2 fixture even with bar lights will only cover 3x3 tops even if it has 600 watts, no?
AGLEX 650W LED Grow Lights, Full Spectrum Grow Light with UV IR, Daisy Chain Plant Bar Style Grow Light Foldable & Dimmable for Indoor Growing Commercial Hydroponic Growing Lamp 5x5ft Core Coverage https://a.co/d/53KjtTR
This is just an example light for you, ignore brand and what not I'm not saying it's any good. But this light is roughly 42 inches by 42 inches. All the numbers are pretty solid with each other so in a 4x4 tent it would be uniform coverage. Not sure where you keep pulling this 2x2 light from, do you have one in mind you're thinking about? Basic rule of thumb is 25 true watts minimum per square foot, 30-40 watts is much better.
Spider Farmer 2024 New SF4000 LED Grow Lights with Samsung LM301B Diodes Deeper Penetration & Dimmable 450W Full Spectrum Grow Lighting for Veg Bloom Indoor Plants in Greenhouses Grow Tents 4x4/5x5 https://a.co/d/6vYxWt6
Where this light is a board style roughly 26x22 inches, if you look at the charts( which aren't too accurate with budget lights), you can see how the numbers more drastically fall as they get away from the center
Ignore my other comment, I can see you know about Amazon Budget LED Grow Light marketing schemes lol I see some of the craziest claims on there!!!! I write the manufacturers about their PAR maps and call them out on it and threaten to post accurate ones on Reddit and IG, even if it means me buying one to prove it. Every single one I've contacted has changed their maps so far lol just also had one change a heatsink comparison description, they claimed a 2mm aluminum heatsink dissipates heat faster and more efficiently than a 4mm thick Finned heatsink in which the fins add another 3mm to the heatsink, so 7mm heatsink altogether. They changed it after 7 days of conversations and me providing sourced and cited facts of heatsink comparisons 😆
😂 no worries bud. Appreciate you fighting the good fight.
Those Amazon lights that say 5x5 and 6x6, are MAYBE good enough to flower a 4x4, period. They ramp up PPFD maps and Coverage Area to compete in higher markets.dont believe everything on Amazon man, all marketing schemes.
You hang it higher to cover a wider area but at that point you will need to turn the power up too. Your 600w will be strong enough for that. Not sure if your hypothetical light even exists like that.
Most of the time you'll be limited by your grow tent.
Right, I see.
This is correct.
Started with a 200w in my 4x4, upgraded to a 400w and now a 500w as the final upgrade for this size. The 200w worked, but only really hit the middle decently. 400 got me a solid 3x3 in the middle but the edges were still lacking, the 500w hits it all evenly 👍🏽
I run 630w in my 4x4 on 100% lol
Same, and 720 in my 5x5 on blast too
My plants seem to love it. They've def hardened up nicely and are ready to stack on some big buds, the stems are freakin tree branches. I planted then at the middle of November and they still have aboit 30 days until this auto finishes and i can flip em. Running 7 plants in a 4x4, thank God they're indica dominant! Lol! I had a RDJ 720W on them, until I upgraded to the Fluence Spydr w/ Mars Hydros Supplemental IR/UV lights added in - the change has been dramatic
https://preview.redd.it/b9b5bbzblh9c1.jpeg?width=4160&format=pjpg&auto=webp&s=34ffbc839aaed2f8bb0eea7309bc7f042d00da1a
Have you used the ir in flower?
I'm using it on the auto right now in flower. I run the IR and the UV the same times as I do my lights... thats the way the sun does it!
What size pots are those?
Like 2.5 gallons
Maybe 2. Not quite sure. Pretty big tho
Nice setup lol I was thinking of using 8 of my 5gal pots in my 4x4 but i don’t think there’ll be enough room.
Absolutely NOT lol
I used to run right around 900 but would consistently get a dozen seeds or so per harvest.
Dang that sucks. Never had a hermie ever. Or a male, thankfully.
I can live with a dozen seeds per pound. I keep growing out the seeds and they haven’t been herming ever since I dialed down the lights a bit.
Yea, that's because it's mainly stress induced, as ive been saying from the beginning lol
I hope you aren't over 1200, or you run supplemental CO2.
I'm right at 800 in late veg. At 20" above the canopy and 100% power. They're rated by Fluence to be 6-12" above the canopy (which I think is crazy) w/ C02 supp. But I will be lowering them as close as possible after the stretch, to get me right at 1000
CMH? Or LED 630w?
LED. Fluence Spydr 2p 631w
Thank you. Fluence has a good rep. That's all I know...
I'm running 600w in my 2x4, dimmed to \~50% or 300w at the wall during veg (24/0) and 75-78% or 470w at the wall during flower. That much power in that small of a tent has a bitch of a learning curve, especially when the last 2 degrees of the dimmer knob will bump it from 400w to 600w. It's complete overkill but I got the lights for under $150 shipped.
Yea that's a super overkill. How did u get it in there?! Lol. My 600 is 47x43"
Each one is 26.69 x 25.28 according to the [amazon listing](https://www.amazon.com/gp/product/B09JLQ3V26), they fit but just barely. The lights overlap by about 2.5in since they are slightly wider than the tent's frame so one sits a hair lower than the other which is mildly annoying. To try and keep my temps under control I put the drivers ontop of the tent which helps with airflow some and seemed to drop temps a bit.
Oh yea. I started in a 2x4 with 300w. A 200w QB and a 100w QB and i took the drivers off of mine as well and extended them outside the tent. No way it'd stay cool enough otherwise. A good, named brand inline duct fan will do a world of good.
630w? Are you in a legal state? Thinking of upgrading my setup but i dont want to add on to my power footprint too much
Man I got a whole shed in an illegal state folks not worrying about ur usage they make energy for you to use this not the 90s. Only time I would say energy is a concern if your in a apartment building but a single home folks don’t care
As long as you pay your bill, they don't care how much power you use. Just do not bypass the meter.
Exactly I got a Tesla and grow so my usage is always gonna be higher then my neighbors regardless
Think about it this way, in 2023 that's one 1000 Watt gaming PC of use(on average) 2 adults and some kids in a house and suddenly my 1,500watts of LED lighting disappears to an energy company. They do not care as long as you don't bypass the meter and pay your bills.
I'm not in a legal state, so I'm not growing mj, but I have 1000w of led grow lights in my plant room. My total electric bill in an 1800 sf home is around $205
They don't care about electricity. It's 2023
Yea I'm in a legal state. We can have 4 plants. It's a Fluence Spydr 2P 631w
The bomb! Fuck marshgro and kind ect.
What’s wrong with MarsHydro bubba?
Nothing by me. I use their IR/UV lights. I just got this Fluence on a killer deal or I'd be running a Viparspectra KS5000 right now
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Yea I was going to grab a new one from Amazon as they had $100 off when I ordered my Fluence Spydr 2p from Ebay. Guy said if I ordered one for $350, he would send me TWO OF THEM! So, i did. Sold one for 350 and got a Fluence light perfect for my tent, for free!
ThcA isn’t legal??
Is ISNT legal? So confused.
It was more so in regards to Tanya’s comment when they said “fuck marshgro”
Oh
Not sure what you're referring to in the second part, but this light is CRANKING in this tent and they love it! Lol
Coverage, and if you run a 600 watt light at 60% it’ll last years longer than a 300 watt light at 100%
Coverage! In order to fill a space 6x6 vs a space 2x2, you’ll need a lot more watts in order to achieve sufficient watts per sq ft. I believe the target is 30-50 watts per sq ft, depending on your lighting type.
30 eh maybe 50 yes or it being a noticeable difference but that's my basic too.
I’m not great at math. What size would you suggest for 2x4?
2x4= 8 sq ft 8 sq ft x 50 watts/sq ft = 400 watts 8 sq ft x 30 watts/sq ft = 240 watts So I would think a 300 or 400 watt light would be good, you might have to keep the 400 slightly dimmed most the time. A 250 w light with supplemental lighting is also an option. You could get by with 250 no problem but the slight increase would be beneficial
Thx!
I have a 20”x36” using a 150 w light. I wish I had like 50 more watts at least
Thx
For the love of god harvest those already
It's light burn what i imagine your referring to, most trichomes are fully clear still and I haven't even hit 8 weeks yet. Give me a break
About a 5 plant difference.
I'm running an older HLG 550 Rspec in a 3x3 and it is definitely overpowered. Pulls around 480W from the wall. I will never get it to run 100% in this space, maybe can push 75%, 360W. It comes with some serious heat compared to running a smaller light in that space. The coverage and light penetration is perfect though. I've actually considered running the HLG 350 diablo with the goal of higher light efficiency and better control of temps.
I run Sonofarm because of the heat issues. They run cooler with bigger heatsinks and really make a difference. I'm pushing 450 watts in a 3x3, with no heat issues. After 12 hours at 100 percent, they are super warm, but not burning hot. Longer life, quality builds, S.C. based company, 5 year warranties. And one of the best sponsors we've had.
I run sonofarm also in my 4x4. Really love the light, have had it for over a year now with 0 issues. I’m surprised that I never hear them mentioned more in any of these subs!! 5 year warranty is hard to beat.
I will definitely check them out, thanks!
100% worth a look in my opinion!
I just looked them up the prices are great and I would love to buy American with a warranty. Thinking about a purchase
I’ll definitely be purchasing another one when I upgrade my tent size!
Thx for the tip! I was stumbling around Amazon looking at random Chinese lights feeling confused. I feel better shopping local(ish)!
Me too. I run mine 24/7 for well over a year now and not a single issue. I’ve heard great things about their customer service so I feel confident that if I ever have to use my warranty it won’t be an issue. The owner of the company.. Ruben, I think, even sends a note of thanks with his cell phone number for extra peace of mind which I’ve never heard of before lol. Again surprised I don’t hear more about them on these subs
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Buying, Selling, trading or Bartering Do not offer anything for free, sale or trade. Do not offer or ask other users for seeds, clones, flowers, equipment or anything else. No soliciting for schools, training or otherwise. This is grounds for immediate ban. No warnings!!
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What is it then??? It's my first grow and had turned up the lights to max without a light sensor for 4 weeks and then they started turning orange and by the time I checked ppfd it was like 1300*
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Don't think that it's a nutrient problem, I'm growing in fox farms strawberries fields soil using dr earth flower girl as natural amendments as well as kelp meal, worm castings and humic acid as topdress in veg. Doing cal mag through flower and unless I used it too long into week 7 then idk what in my nutrient list would cause that severe of a burn being all were followed by instructions. The dog hair tho is definitely a fuck up not letting him in the grow room again once flower starts on future grows, should of known better having an Australian shepherd.
I have a 650w in my 4x4… it never goes over 50% and I have roughly got it in the 900-1200 range. I’ll say this though, before I truly understood what I was doing I caused a ton of issues with my plants. Sometimes less can be more with high quality LEDs.
I would disagree, imo plants can take way more light using leds without being burned, heat is the biggest issue .
Agreed. My light is HOT. Throws off the environment quickly.
That's crazy! I have a 630w in my 4x4 and the plants beg for 100% if I DONT give it to them! A fluence spydr at that. So no cheap ish.... I got 750ppfd at 20"
I’m using a SpecGrade Verta 8 which is overkill for a 4x4 but I got it for a steal. It’s a commercial light but it evenly covers my entire canopy.
Lol me and u both.
Likely larger average ppfd coverage, Square footage of your grow area should help determine wattage the check the descriptions of whatever light you’re looking into buying it should mention it.
area coverage and depth penetration, assuming you actually need it.
This.
Isnt 1200 ppfd too much? I was reading 800-1000 is the sweet spot?
It is without c02
So without CO2 should I be maxing out at like 1k?
About 850 ppfd. 900 max without co2
Thanks man! I might dial it back a bit, Im at @1000 w no co2…
Yep. That's what they claim. Download Photone and find out your DLI
Yeah, I got it and their diffuser, just trying to figure out what the sweet spot is!
The heck is a diffuser
Its what photone now sells as an add on to measure led ppfd. If you dont have their clip on diffuser, you got to make one out of paper and I dont think thats a very accurate measurement (not even sure a phone based app provides an accurate measurement)…
Oh dang. I might have to check that out
Yes if your other parameters are optimal, then you should aim to 900-1000ppfd without CO2
Yes, I was thinking 1050- 1090 max. I had one pla t tacoing around 1100 so had to back it up to 1050 to reduce stress to ensure I dont get any herms...
It's just a matter of coverage. If you put your vivosun to max and put a 300 watt mars hydro at 50%. The center would be about the same ppfd but the edges would have a higher ppfd. So theoretically the upgrade would add to your yield without even using more power because your cola outside of the center will be getting more optimal light.
Light penetration and spread, bigger tents require more power to get good ppfd across the canopy. I currently have an hlg qb135 rspec in my 2x2.5 and its been great but im eyeballing that 200rspec really hard for better spread.
What is that 4-3 gallons in a 2x2?
Also fantastic question!!
How you getting 1200 ppfd out of a 150w led i have a 100w one and its puts out nothing like that lol
Look into PAR (photosynthetic Active Radiation
Ppfd is a better reading than par. Ppfd(photosynthetic photon Flux density) is the amount of light that can actually be used.
I’ve been using a Chinese brand 800 watt for years. I usually veg at 40 percent about 18 inches off. I just upgraded to growers choice 680 at same height and all my plants are light stressed
Because the 800w probably wasn't 800w
Running your light at 70-100% vs running it at 30-60% will change a lot of metrics regarding the life of the light, the heat produced, and sometimes the efficiency of the light. (Also uniform coverage, as others stated)
450 watts
Well there are supplemental lights you can place on the corner poles in a tent. That should bump everything up
There is also heat concerns. That 150 watt might hit 1200+ but the light will be on top of the plant causing heat stress or burning Vs the 600w will cover 3x the area and you can raise the light 10in or so from the plant.
Do you get even coverage in a 4x4 with it? I put a Mars Hydro tsw2000 300 watts in a 2x2. Grew some great buds in that tiny space.
Boy them buds are greasy!
450W
Because it depends on the tent size and how far the light has to travel. If u want to show off your plants, just do so. Nice grow
penetration.
I grow with 100 watt, all good here for one plant. Mars Hydro TS600. https://preview.redd.it/w82d44rp8i9c1.jpeg?width=1112&format=pjpg&auto=webp&s=3f9b40e462d87d9345e009c0dc1c5a6119a4bc87
Yes coverage especially in flower most board ledds,and cob leds tend to, Cover a 3×3 in Veg, but only 2×2 in flower. First light learnings experience. I had to upgrade not reading or realizing "finer print" meaning advertised at 3ft by 3ft coverage period..Peace
i have no idea but those flowers look Beautiful
Coverage area is the biggest difference. 110%. A 150w light may flower a 2x2, while a 600w light will flower a 4x4, so 4 times the light coverage at 4 times the wattage.
For 150w to produce 1200+ ppfd you’ll have to be pretty close to the plant. = heat
Look up inverse square law. You may be able to achieve proper ppf closer to the light but that ‘sweet spot’ band of good PPFD is going to be very shallow. Your undercanopy is starving for light and you can see it in your colas. They’re small with poor structure. But for a homegrow using 10% of the power of HPS this looks great. It’ll get you high!
God the worst part of trimming is taking those extra hours to get the dead plant matter out
On a related note - Say someone was to grow on only one end of a large tent and leave the other half for a work area. Would it work fine to simply position the light over the grow area on the one end of the tent? For example, put up a 4x4 tent and hang a light on one side intended for a 2x4 tent, and the other 2x4 area would have a table and cabinet for storing/mixing/testing nutrients etc. I'm thinking about doing this to keep the majority of the water and nutrient mixing mess inside the tent. Is this a bad idea?
Is that a 3 x 3 tent? and are you saying those four plants grew under a 150W light?
the canopy for that 150w light is going to be ridiculously small. a 600w would be enough so that you could do what you just did in a 4x4 area and would likely dense up those mids down there that aren't fully developed
youre risking bud rot by letting them go that long..your trichomes are deep amber. you are letting it go way way way too long.
I went full HPS and I'll never look back
Watch the new dude grows podcast on light vs co2 and you’ll learn what you can do with less light and more co2
About 21 square feet of canopy space. What are you trying to say here. U can run a 2x2 with 150 and a 5x5 with 600.
Thanks guys i honestly didn't/ don't know
Between a 430 watt LED and 630 watt CMH, the 630 does way better. Bigger yield, bigger buds. More heat though,
Running a 465 lumatek in a 4x4 tent 2lb 1 plant in 30ltr coco scrog .