You are the most honest and experienced light tester I have seen and will continue to listen to the knowledge you share because it has helped me become the grower I am.
3:34 600w of any decent LED hung at the top of a 6ft tall 4x4 is more light than soil can keep up with. Any color other than 1 shade of green before F7 is too much light for the roots to keep up with. And if they won't stay green and praying happy prayers with all the watts you got, then every 2" you raise the light adds 1" of penetration. More PPFD to the bottom of the canopy when the top is already maxed out.
I've got the red 383 bluetooth lux meter shown and use it with the PPFD app and a selfie stick to get some door closed readings by poking it through a gap.
Best thing to do when the plants are still growing is to start at the max.(example. 40CM) possible height and then let them grow to the min.(30CM) possible height, rinse and repeat. In the flowering period as low as possible. Flowers started to turn white from too much light exposure with a 600W HPS at around 25CM to 20CM. So for a 600HPS 30CM min. is best (2 Fans of 15CM were used blowing below the lamp)
I had mine as low as 20 cm from the tops almost from the start of the veg. Now i grew little footballs, had to hang it further up and now they are finally stretching.
@MIGROLIGHT Hello I was wondering if running your lights at 80% for flowering is bad? I am trying to keep temps down below 86. My plants keep stretching and are going past the light now I've had go super crop them. It's only my first grow that's why I was wondering are my plants stretching because the lights at 80%?
@@justinholtgrave thank you. One of my plants is so big that it took over the other plants. It takes up around 35, 40% of the whole 5x5 tent. It just keeps on going.
Forever green didn't give hanging heights for their gen 1 lights. I had to find the best hanging height and I found that if I could get the center of the light at 1200 ppfd the edge seems to be about 900 ppfd. It works well for us. Then I adjust the power percent based on ppfd. Then it's a game of keeping the stretch short of the light. We run racks and are limited on height. Sometimes I'll even push 1200 early just to slow the stretch
My first light was a Growers Choice. I like it, but it came with no instructions or recommendations. My second light (in the mail) is a Migro Aray 4x4.
Same here only I experimented by using the same strain and only giving half uvb. The difference was unbelievable. Only a moron could deny the science plus results I had.
hi MIGRO. i love your videos!!! you encouraged me to make my self a led sistem ;) i made led sistem 700w with 6 bar, each bar have 300 chip 4000k lm281b+ and 12 chip osram 660nm. at 700w 18" i have 1200ppfd (using Uni-T UT383 multiplied by 0,017) in the center. i can dimable from 100w to 700w if i want. Do you think the proportion of the osram 660nm that i have is correct?????? thanks!!!!!!!
Very helpful video thank you! My only question is about the LED percentage controller - I'm trying out a Maxibright 660W Pro LED in a 1.2M x 1.2M tent and the first time i used it i ended up Tacoing everything mid-Veg as i had already whacked the LED up to 100% doh! Could you please give a rough idea of what stages you recommend each percentage for - I'm hear you say seedlings should be kept at 25% for 1st couple of weeks but how long would you run at 50% for, and when or what stage would you normally step up to 75% and 100%?? And I'm guessing the light needs to stay at 12 inches above canopy throughout all the percentages?? Thanks very much in advance!
Hi Shane, what's the procedure with light and DLI when flipping to 12/12. If I have understood the theory correctly, light intensity has to be increased to maintain DLI?
When you use mainlining and clones your canopy can't be more even...and to get rid of this problem when I use seeds and different techniques I have a QB's over each plants
What about Using a light rail? Setup correctly they can really help a lot. No hotspots since lamp is moving. Can also get deeper in canopy with higher power settings. Wouldn’t use in no less than a 4x4.
I am in my5th week since the flip and I keep my lights about 14 inches from the majority of my buds. Wouldn't two lights of lesser wattage provide a larger prime area? For instance I have 3 lights in my 4x4 providing 400 watts max?
I bought the spider farmer g4500 which for some reason has hanging hight for se series only in instruction manual.. and hence by following this completely fried the top of my plants... not very happy.
Thank you so much for such great input Shane. I need to ask you though: I've been using the ARAY 120W at 6" hight, almost from germination all the way to harvest. I dimmed up to 100% even before switching to 12/12 and I never experienced any burnt or stress from that. Why the average height suggested then is supposed to be double, 12"? Thanks once again for your cutting-edge amazing LED lights!
Shane maybe u can help here, currently I flower with x2 600w hid’s with hps or cmh bulbs in there, thinking about going with x2 spider farmer g5000 led’s to replace but the cost of power use is not a problem apart from costing me the best part of a grand for new led lights ouch! 😢 ( if I buy them )and I also need the heat they produce as in Scotland the weather is shite and cold so hid work great in my climate and my gro sits at 31oC without any hassle in late flower I use ac to get to abt 22oC for the preservation of terps etc etc..Will I see any benefit at all on the yield , quality of flower taste etc etc or any faster to harvest using led or are they simply cheaper to run ? I get dammed good results as it is and plenty weight at harvest time I switch between mh hps and cmh bulbs throughout the crops entire cycle and do add CO2. Cannabis is the crop in question What’s your advise ? The cost of power is no worries so with energy costs out of the equation whats your thoughts on my question above ? Cheers j
Could you do a light test using Porsche headlights, it would be interested to know if they’re really getting used as grow lights as the internet has led me to believe
Huh🤔 never heard that before. I would love to know who the funk comes up with this wild stuff. But that's how innovation is made usually. Just by funking something up in a cool way😂🤷
Could you please test the Mass Metal Halide bulb please? The veracity of the claims about a more sun like spectrum should be tested by an objective tester.
the king of lighting for chillies get them as close as possible or suffer the inverse square rule and if you get cotton mouth you have done it right. pity the cut-off diy philips array is not featured at 110 lux per watt
@@getzvalerevich6565 well 4x4 is 120x120 youd have to raise your lamp a bit higher than max and also dimm it a bit more to counter act I guess so you reach the edges of the tent if you want to fill the full tent with the canopy
@@getzvalerevich6565 but a smaller tent or a stronger light maybe 300w would be better, its like having a school bus with a normal car motor, its gonna drive but just not fast if that makes sense
@MIGRO I am confused, i hope you can explain. I ordered a Aray2, should arrive end June. In the video it states optimum hanging height is 30cm, but your website only show par maps of minimum height of 22cm and 39cm. So there is no par map of optimum hanging height of the Aray2 on your website nor does it states 30cm is the optimum hanging height. Does this mean that your best led light for a 2x2 for 2024 comparison video is based on 22cm hanging height or 30cm hanging height? And what height are other lamps tested on: Optimum hanging height or minimum hanging height? If tests where done at 30cm hanging height, why are they not shown on the website? I started comparing other lamps on your website and do seem to have par maps of optimum hanging height. I really like your videos and this got me convinced to buy a Migro Light, but this video and compared to previous data i have from videos and your website got me all confused and i hope you can explain and update your par maps on your website for the Aray2.
Finally someone said it. No one can seem to grasp the sun can be up to 2500mm, I see everyone having the light way too high. Mostly with cheaper lights. You can get them very close
I recently got an Aray 4 and have had it within 14-16" of the tops set at 100% and no sign of them being unhappy. Considering the manual suggests 10" at 100% during flower I'm guessing I could still move them way closer.
@@competetodefeat4610 they are good lights. I have mars hydro and they can be 4 inches with the 150watt, and the 650w I go 8 inches to the top at about 1500mm so the lower leaves get more light. I get arm size flowers. Just never let them go dry. Auto water or check every day
It's only 2500PPFD for a couple-few hours per day during veg, and the leaves are never praying towards the sun for those hours. Since the light is the size of a penny, it's easy to point their leaves north for 200PPFD. In a tent, leaves taco and twist because they can't look away. But if your plants are green with flat praying leaves, then you don't have too much light too close to the plants.
@@aether6500 yeah so you keep slowly getting it closer until it does taco. Also lots of air flowing over the top of the canopy. Auto watering for a few times a day. But it can get huge flowers from a small light really close
Yea Shane on the new hortibloom mega 800 light u just tested little bit back. You totally missed the recommended hanging height u said 12” and hortibloom says 18”-36” and led optic depot that sales them has 18”-36” also and light is so strong it’s probably going need be in middle of that at around 24” maybe even more
yep it has to do with the temps too high try keeping indoor temps as low as possible in the last 4 weeks as it increases terps and promotes cannabinoids in fact look at the changing seasons in nature where flowers get done in the fall it is cooler in automn than summer
What are you saying? No light is the best (as in..... 'I grow in the dark' ) or are you saying all leds are bullcrap? P.s I'm not sure I agree with either statement
@@Freedom_Born oh is that what he was saying? That makes more sense...... then yes, solar is the best....... its just when he wrote 'no light is best' and I thought ' you'll probably struggle'
@@rickster9065 Maybe he thinks No LED light is the best. Perhaps alluding to the opinion that HID is king. Probably an HPS diehard. Idk. Obscure comment wasn't it.
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You are the most honest and experienced light tester I have seen and will continue to listen to the knowledge you share because it has helped me become the grower I am.
That's why i bought a led from him :)
Been growing way too long to not take advantage of the science! Thank you very much. Really looking forward to growing under a good light!
always appreciate your helpful information.
3:34 600w of any decent LED hung at the top of a 6ft tall 4x4 is more light than soil can keep up with. Any color other than 1 shade of green before F7 is too much light for the roots to keep up with.
And if they won't stay green and praying happy prayers with all the watts you got, then every 2" you raise the light adds 1" of penetration. More PPFD to the bottom of the canopy when the top is already maxed out.
I've got the red 383 bluetooth lux meter shown and use it with the PPFD app and a selfie stick to get some door closed readings by poking it through a gap.
Best thing to do when the plants are still growing is to start at the max.(example. 40CM) possible height and then let them grow to the min.(30CM) possible height, rinse and repeat. In the flowering period as low as possible. Flowers started to turn white from too much light exposure with a 600W HPS at around 25CM to 20CM. So for a 600HPS 30CM min. is best (2 Fans of 15CM were used blowing below the lamp)
I had mine as low as 20 cm from the tops almost from the start of the veg. Now i grew little footballs, had to hang it further up and now they are finally stretching.
What do you mean my canopies aren't even.... How dare you Shane😂🤣
lol😆
@MIGROLIGHT Hello I was wondering if running your lights at 80% for flowering is bad? I am trying to keep temps down below 86. My plants keep stretching and are going past the light now I've had go super crop them. It's only my first grow that's why I was wondering are my plants stretching because the lights at 80%?
@rad1calracoon713 you need a bigger tent and an air conditioner lol. 80% power is okay.
@@justinholtgrave thank you. One of my plants is so big that it took over the other plants. It takes up around 35, 40% of the whole 5x5 tent. It just keeps on going.
@justinholtgrave I've finally got the tent down to 78-82 hopefully these buds will be good it's my first time growing.
Well, you’re a smart man. I love watching your video content very helpful.
Opened up the tent turned on the air conditioner on high cool, buds 3"away nano lux 630 on high, looking awesome.
I love my "Spot On" PPFD- meter, helps me so much every grow! well worth the price well made!
Forever green didn't give hanging heights for their gen 1 lights. I had to find the best hanging height and I found that if I could get the center of the light at 1200 ppfd the edge seems to be about 900 ppfd. It works well for us. Then I adjust the power percent based on ppfd. Then it's a game of keeping the stretch short of the light. We run racks and are limited on height. Sometimes I'll even push 1200 early just to slow the stretch
Thank you once again, for useful science based facts!
Thanks for the informative video.
I needed this so much
1500 lux an a 150mm grid use rabbit mesh and plastic pipe subframe for a cheap startup with good close spread
My first light was a Growers Choice. I like it, but it came with no instructions or recommendations. My second light (in the mail) is a Migro Aray 4x4.
excellent results from your UVB fixture sir!) Kindest 💚
you use it, as they recommend it? middle of day for 2h for the last 3 weeks of flower?
@@czuncz1 exactly with VERY sticky results!
@dust6242 are you running the same genetics as before yoy added uvb? Or new genetics?
Same here only I experimented by using the same strain and only giving half uvb. The difference was unbelievable. Only a moron could deny the science plus results I had.
@@BJahoda yes the only difference was the addition of UVB.
I stop adjusting height based on distance, and now adjust based on PPFD light reading at the top of the plants.
Please test a 630w double ended cmh from adjust a wing its pretty cool
Hi, check this comparison out: ruclips.net/video/wzwb1DiM0ME/видео.html ALL CMH very similar in efficiency and spectrum
Thanks Buddy 👍
hi MIGRO. i love your videos!!! you encouraged me to make my self a led sistem ;) i made led sistem 700w with 6 bar, each bar have 300 chip 4000k lm281b+ and 12 chip osram 660nm. at 700w 18" i have 1200ppfd (using Uni-T UT383 multiplied by 0,017) in the center. i can dimable from 100w to 700w if i want. Do you think the proportion of the osram 660nm that i have is correct?????? thanks!!!!!!!
Very helpful video thank you!
My only question is about the LED percentage controller - I'm trying out a Maxibright 660W Pro LED in a 1.2M x 1.2M tent and the first time i used it i ended up Tacoing everything mid-Veg as i had already whacked the LED up to 100% doh!
Could you please give a rough idea of what stages you recommend each percentage for - I'm hear you say seedlings should be kept at 25% for 1st couple of weeks but how long would you run at 50% for, and when or what stage would you normally step up to 75% and 100%?? And I'm guessing the light needs to stay at 12 inches above canopy throughout all the percentages??
Thanks very much in advance!
Hi Shane, what's the procedure with light and DLI when flipping to 12/12.
If I have understood the theory correctly, light intensity has to be increased to maintain DLI?
drop the light to increase PAR or allow them to grow into it while stretching which also increases PAR
Always good info!
When you use mainlining and clones your canopy can't be more even...and to get rid of this problem when I use seeds and different techniques I have a QB's over each plants
I have the Electric Sky ES-300 V3 & there is no info on the entire internet about its PAR output.
Can you test some leds from "cresience" ?
How high should I hang my 100w led light from my canopy?
Hanging height of a Spiderfarmer 1000 led on a light mover? 6"? Closer?? Thanks Shane.
What about Using a light rail? Setup correctly they can really help a lot. No hotspots since lamp is moving. Can also get deeper in canopy with higher power settings. Wouldn’t use in no less than a 4x4.
light rail is win win situation for leds
@@subhumanaudio 25 percent less power
should one reduce temps and ppfd in final week of flower?
I am in my5th week since the flip and I keep my lights about 14 inches from the majority of my buds. Wouldn't two lights of lesser wattage provide a larger prime area? For instance I have 3 lights in my 4x4 providing 400 watts max?
Thanks 🌱
I bought the spider farmer g4500 which for some reason has hanging hight for se series only in instruction manual.. and hence by following this completely fried the top of my plants... not very happy.
Imagine how much tweed has been grown by shanes lights, oodlees and oodles of the stuff.
When the branches start folding down and outward it's time to raise the light
Thank you so much for such great input Shane. I need to ask you though: I've been using the ARAY 120W at 6" hight, almost from germination all the way to harvest. I dimmed up to 100% even before switching to 12/12 and I never experienced any burnt or stress from that. Why the average height suggested then is supposed to be double, 12"? Thanks once again for your cutting-edge amazing LED lights!
Awesome sauce thanks!
most plant grows best between 25/45 DLI based on what stage of growth you are
Shane maybe u can help here, currently I flower with x2 600w hid’s with hps or cmh bulbs in there, thinking about going with x2 spider farmer g5000 led’s to replace but the cost of power use is not a problem apart from costing me the best part of a grand for new led lights ouch! 😢 ( if I buy them )and I also need the heat they produce as in Scotland the weather is shite and cold so hid work great in my climate and my gro sits at 31oC without any hassle in late flower I use ac to get to abt 22oC for the preservation of terps etc etc..Will I see any benefit at all on the yield , quality of flower taste etc etc or any faster to harvest using led or are they simply cheaper to run ? I get dammed good results as it is and plenty weight at harvest time I switch between mh hps and cmh bulbs throughout the crops entire cycle and do add CO2. Cannabis is the crop in question What’s your advise ? The cost of power is no worries so with energy costs out of the equation whats your thoughts on my question above ? Cheers j
So the spider farmer SE7000 needs to be 8 inches away from the tops in a 4x4 🤔
Hello Shane
We need UNDER CANOPY LIGHTS
Yes please, side lights and under canopy!
Still the best Shane!
Could you do a light test using Porsche headlights, it would be interested to know if they’re really getting used as grow lights as the internet has led me to believe
Huh🤔 never heard that before. I would love to know who the funk comes up with this wild stuff. But that's how innovation is made usually. Just by funking something up in a cool way😂🤷
i know people who use the old style of headlights and it works
I was curious if you have heard of the szhlux 500w and if you'd recommend one for a beginner
Another good video
Could you please test the Mass Metal Halide bulb please? The veracity of the claims about a more sun like spectrum should be tested by an objective tester.
Hi, check this comparison out: ruclips.net/video/wzwb1DiM0ME/видео.html ALL CMH very similar in efficiency and spectrum
the king of lighting for chillies get them as close as possible or suffer the inverse square rule and if you get cotton mouth you have done it right. pity the cut-off diy philips array is not featured at 110 lux per watt
do you think one would get away with vegging 4 plants under a 100w led light then finish off the flower with a 200w led light in a 4v4 tent?
thanks
yeah I think so, have right now 5 plants doing amazing mid flower in a 100x100 and 240w
@@pichi7048 is your light raised to the max height or are you sticking with the minimums and raising slowly as the canopy grows?
@@getzvalerevich6565 well 4x4 is 120x120 youd have to raise your lamp a bit higher than max and also dimm it a bit more to counter act I guess so you reach the edges of the tent if you want to fill the full tent with the canopy
@@getzvalerevich6565 but a smaller tent or a stronger light maybe 300w would be better, its like having a school bus with a normal car motor, its gonna drive but just not fast if that makes sense
@@pichi7048 thanks for the advice and chat. 👍
I'll raise my light as high as possible. I was worried it would be too weak for the plants.
You only get a hot spot if the light does not move.
Turn the light up and move the light.
Shane how to you feel about fluence by osram
@MIGRO I am confused, i hope you can explain.
I ordered a Aray2, should arrive end June.
In the video it states optimum hanging height is 30cm, but your website only show par maps of minimum height of 22cm and 39cm.
So there is no par map of optimum hanging height of the Aray2 on your website nor does it states 30cm is the optimum hanging height.
Does this mean that your best led light for a 2x2 for 2024 comparison video is based on 22cm hanging height or 30cm hanging height? And what height are other lamps tested on: Optimum hanging height or minimum hanging height?
If tests where done at 30cm hanging height, why are they not shown on the website?
I started comparing other lamps on your website and do seem to have par maps of optimum hanging height.
I really like your videos and this got me convinced to buy a Migro Light, but this video and compared to previous data i have from videos and your website got me all confused and i hope you can explain and update your par maps on your website for the Aray2.
Ive spent years trying to get an even canopy it occasionally happens i imagine its been luck 🙈🙉🙊
Why do all lights only point straight down?
Please test omega black 720w bar led please
have you experienced any bleaching of tops this close?
An example of light burn here: ruclips.net/user/shorts93nTiZAm7M4
Finally someone said it. No one can seem to grasp the sun can be up to 2500mm, I see everyone having the light way too high. Mostly with cheaper lights. You can get them very close
I recently got an Aray 4 and have had it within 14-16" of the tops set at 100% and no sign of them being unhappy. Considering the manual suggests 10" at 100% during flower I'm guessing I could still move them way closer.
@@competetodefeat4610 they are good lights. I have mars hydro and they can be 4 inches with the 150watt, and the 650w I go 8 inches to the top at about 1500mm so the lower leaves get more light. I get arm size flowers. Just never let them go dry. Auto water or check every day
@@competetodefeat4610what media?
It's only 2500PPFD for a couple-few hours per day during veg, and the leaves are never praying towards the sun for those hours. Since the light is the size of a penny, it's easy to point their leaves north for 200PPFD. In a tent, leaves taco and twist because they can't look away.
But if your plants are green with flat praying leaves, then you don't have too much light too close to the plants.
@@aether6500 yeah so you keep slowly getting it closer until it does taco. Also lots of air flowing over the top of the canopy. Auto watering for a few times a day. But it can get huge flowers from a small light really close
How about this question 2 1x1m tents or 1 2x1m tent?
Tie down the higher reach branches once the lower one reach the same height it's all good.
Yea Shane on the new hortibloom mega 800 light u just tested little bit back. You totally missed the recommended hanging height u said 12” and hortibloom says 18”-36” and led optic depot that sales them has 18”-36” also and light is so strong it’s probably going need be in middle of that at around 24” maybe even more
What I want to know is, can you have lights so close that they damage THC production, yet the plant remains healthy looking and green?
yep it has to do with the temps too high try keeping indoor temps as low as possible in the last 4 weeks as it increases terps and promotes cannabinoids
in fact look at the changing seasons in nature where flowers get done in the fall
it is cooler in automn than summer
Why didnt you test spiderfarmer? arent they any good?
Tested lots of them over the years, just search through the channel
@@MIGROLIGHT ah okay, thx will do :)
Garbage
@@SilentScreamsStudios Because......?
@@michaelmustermann-dr6ec it s a cheaper light that works fine like the mars hydro
but if you need uvb buy the light from migro it s a killer
Shane test some AliExpress lights pls bro
Do what works for you. Simple. Isn’t it
I shared disssss
I like how he assumes everyone's geowing weed
nice
Greenception ist das beste led
Pleite
In Germany
Greenception Cob version was very good
Sanlight in Germany better
Top quality
Light rail.
🔥🔥🔥🤘🤘
😎👌
✌️😎🔥🔥🔥
No light is the Best Led bullcrap
What are you saying? No light is the best (as in..... 'I grow in the dark' ) or are you saying all leds are bullcrap? P.s I'm not sure I agree with either statement
Solar for the win
@@Freedom_Born oh is that what he was saying? That makes more sense...... then yes, solar is the best....... its just when he wrote 'no light is best' and I thought ' you'll probably struggle'
@@rickster9065
Maybe he thinks No LED light is the best. Perhaps alluding to the opinion that HID is king. Probably an HPS diehard. Idk.
Obscure comment wasn't it.
Does t even matter as long as you have the correct ppfd at canopy???