modular overkill led striplight build

[cobshopgrow]

thanks, yes i am also a bit surprised how low i need to drive em.
i think youre right, it will just take a little more to get above 600 ppfd in the 3x3, i havent tested.
would need to make a complete par/ppfd map, if i find time and sense for it and have no plants in the tent.

i can not tell what i will need in flower, have the option to play a bit with the 3000k/660nm ratio and max power.
if the trend continues, i would say a XLG 200 driver instead of a HLG 320 for the 3000k EB3´s in the 3x3 would be just fine and cheap.
always depends a bit on what youre looking for, i want to give them the max they can handle (without extra Co2) and will probably have a very sane power usage.

the wattmeters arent the most precise, but theyre ok to get the picture, the spectrometer should be pretty spot on.
i have over a half dozen of these wattmeters, different forms, and they show almost all the same, within margin.

i think i can veg with 80w total wall draw perfectly fine in my 3x3, aiming for a good 400 ppfd average.
that will be probably my target in the future to not burn the plants.

of course what i see is just true for these plants i have there.

my nutrient regime is maybe not perfectly dialed in, especially in combination with our beloved strong led light.
overall the plants arent unhealthy, have a good amount of roots and some more biomass now,
still strugle to get them taking the 100w wall watt, still have droppy leaves 3h before lights out.

the thread you linked is a interesting read, thanks.
would be interesting to see what he nowadays would achieve with some recent stripes, boards etc., especially in regards of spread.
his meter is nice, goes down to 360nm, only thing i am missing with the C7000.
i made out of curiousity some under leaf meassurments allready and can just confirm what is knowen allready, all.
i can post some spectrum with and with without 730nm, meassured through the leaves if you want.

 

[Rocket Soul]

thanks, yes i am also a bit surprised how low i need to drive em.
i think youre right, it will just take a little more to get above 600 ppfd in the 3x3, i havent tested.
would need to make a complete par/ppfd map, if i find time and sense for it and have no plants in the tent.

i can not tell what i will need in flower, have the option to play a bit with the 3000k/660nm ratio and max power.
if the trend continues, i would say a XLG 200 driver instead of a HLG 320 for the 3000k EB3´s in the 3x3 would be just fine and cheap.
always depends a bit on what youre looking for, i want to give them the max they can handle (without extra Co2) and will probably have a very sane power usage.

the wattmeters arent the most precise, but theyre ok to get the picture, the spectrometer should be pretty spot on.
i have over a half dozen of these wattmeters, different forms, and they show almost all the same, within margin.

i think i can veg with 80w total wall draw perfectly fine in my 3x3, aiming for a good 400 ppfd average.
that will be probably my target in the future to not burn the plants.

of course what i see is just true for these plants i have there.

my nutrient regime is maybe not perfectly dialed in, especially in combination with our beloved strong led light.
overall the plants arent unhealthy, have a good amount of roots and some more biomass now,
still strugle to get them taking the 100w wall watt, still have droppy leaves 3h before lights out.

the thread you linked is a interesting read, thanks.
would be interesting to see what he nowadays would achieve with some recent stripes, boards etc., especially in regards of spread.
his meter is nice, goes down to 360nm, only thing i am missing with the C7000.
i made out of curiousity some under leaf meassurments allready and can just confirm what is knowen allready, all.
i can post some spectrum with and with without 730nm, meassured through the leaves if you want.

I will never say no to more data, post it!
Malocan isnt posting anymore unfortunately. Very interesting to see that the most absorbed is 680-700 approx, which is hard to get with leds, only know of teks pc reds that give decent output there. I cant wait to try them.

His light was dead cool, 5600k + 1750k.
Heres the thread: https://www.rollitup.org/t/help-me-please-to-build-my-lamp.934738/

Id love to see par maps of your space cause i cant make these numbers work; extraordinary intensity for that low power. I think youre probably right, 200 driver is probably enough. You have a good chance of breaking g/w records if that was ever something youre after. I think 600ppfd with a strong red supplement should flower real well.

 

[cobshopgrow]

regarding the power draw.
i am sure i cant do a perpetuum mobile with them.
taking more edge measurements and average them with the middle, top canopy measurements would even the numbers allready a bit.
the thent is just 3x3, 86x86cm, not a very huge space to be lit, lots of wall reflections, also a factor for the high readings.
a real par map and a average will show the real world, while really seeing no problem reaching the 600ppfd+ with a 200w XLG and some added reds,
think youre right.


i can really veg fine with 80w so far and i still have problems to give em more PPFD, for whatever reason.

 

[cobshopgrow]

his light combination is interesting, as far i read he epxerienced a quicker flowering.
makes complete sense as his 1750K should have had quite some far red.

i post some through the leaves meassured shots.
first is without 730nm on, you can still cleraly see the relative big amount of 730nm.
you can compare to my previous posted spectrum to see.



this is with far red diodes on, just 6w on this area.
it penetrates i would say.

tried to measure at the same spot as good i can, covered by leaves.

just comparing myself, but idk if 680-700 is absorbed, looks more like it go through, starting to be like 730.
if you compare first posted above spectrum (no far red on, covered by leaves) with my normal measured spectrun (no far red, no leaves) one page back.

 

[Rocket Soul]

his light combination is interesting, as far i read he epxerienced a quicker flowering.
makes complete sense as his 1750K should have had quite some far red.

i post some through the leaves meassured shots.
first is without 730nm on, you can still cleraly see the relative big amount of 730nm.
you can compare to my previous posted spectrum to see.
View attachment 4437503


this is with far red diodes on, just 6w on this area.
it penetrates i would say.
View attachment 4437502
tried to measure at the same spot as good i can, covered by leaves.

just comparing myself, but idk if 680-700 is absorbed, looks more like it go through, starting to be like 730.
if you compare first posted above spectrum (no far red on, covered by leaves) with my normal measured spectrun (no far red, no leaves) one page back.

Those under leaf readings of malocan was of 3500k, not with added red or 1750k. So not really like for like comparison. This is great cause its new contrasting data, good to know that the added red isnt wasted on top leaves only. Also malocan never mentioned what intensity he was using. Conclusion for me is that adding red is not a waste and also confirming; carefull with the far red. Thx for making the effort

 

[cobshopgrow]

i cant tell you if the red and deep red is absorbed by the first leaf or from the leaf below.
would think its mostly the first leaves surface doing this as showen in the bugbee videos.

good to see that red is absorbed, turned in to energy, well.

youre right about 730nm, thats what i also think, be carefull with extra far red.
picture 2 is clearly "strech mode" i would say, higher far red to deep red ratio.

 

[cobshopgrow]

so guys n girls, here is a update.
80-90W do fine, everything above was too much.
one to the left is now the weakest in the bunch, things completly turned.

pretty much some tectbook lightburn, bleaching , yellow tips, but the new growth is happy now.

overall theyre happy, now... time to flower em.


and some nice festive days for you all!

 

[cobshopgrow]

today i installed some of the selfmade driprings.
theyre working with a submersible pump which is connected to a wlan smart plug, so i can set the precise.



i am starting to give them more power, they can take it now, at least the 150W yesterday and the 200W since today.

 

[sethimus]

clear tubes are a nono, you’ll soon get some alga growth

 

[cobshopgrow]

had not enough green in house, its easy to replace at least.

edit..just ebayed some black tubing, yea, sure algae will come.

 

[cobshopgrow]

220w is too much,they started to bleach again, they can only take 200w.
180w 3000k , 20w 660nm.
that works.

 

[lukio]

toy envy

girls are lookin nice

 

[cobshopgrow]

thank you!
to what i saw your girls are healthier.
cant really, nor do, expect a perfect run here.

 

[lukio]

theyre nice n perky! how much Mg are you giving them?

 

[cobshopgrow]

as you recommended i aimed for 75 ppm, its maybe 80.
started with 50 went quick to 60, but over 70 is good it looks.
i give quite some epsom salt, 5.5g/10l plus whats in the base mix ,somehow magnesium is like afterburn lotion for them.
the camera enhance the green, did my best to keep it nutral, halfway ok, manual WB, well you know this stuff better then me.

ah and they got mineral magic, tons of it, contain some mg too, i go by eye, they like it.

 

[lukio]

as you recommended i aimed for 75 ppm, its maybe 80.

oh i did, did i?! haaha, my memory is SO bad! i asked cause theres maybe a slight touch of inter-veinal chlorosis? it could be lighting too. ive found that happens in my garden from lack of Mg and or cold root zone

 

[cobshopgrow]

haha, yea, you did somewhere, 150 calcium 75 mg.

think its more lightning, after i dial down the chlorosis get better.
sure, extra magnesium is good, but dont think its the source of it.

you can see in the very outer corners, there is no bleaching, there the leaves are absolute perfect, even better to see in real world.
(last picture, right to the spectromaster, perfect green in the corner)
thats my indicator.

hm ,root zone temp, havent thought of, temp gun say 22c, night is max 5c less, think its fine.
temp gun on the leaves say a good 25c, in the green zone.

in the end i dont know why they dont want more, but its really what i see.
and what it also halway fits to the whats written in the usual guides, 55k lux, 800ppfd,n such, without co2 and without high 30c temps.
i played the game now several times, give more light... hmmmm.. give less photons....ahhhhh.

guess later on they can take more.... i will try... i fear.

 

[lukio]

ah man they look real happy, plant body language says a lot imo.

haha, yea, you did somewhere, 150 calcium 75 mg.

i have a folder somewhere with loads of different peoples ppms, what people like Greengenes and great growers like Renfro are feeding theirs...ill try and dig it out... its pretty interesting.

 

[Rocket Soul]

What is your hanging height? 900 ppfd @ 6" is not the same as 900@ 18" as closer means less shadows and higher exposure. We had top leaves that went from ok, to senescence to crispy burnt shit on our top leaves on our most diode dense and low hanging fixture. Yields were fine, nonprobs.

Also consider the possibility of high ppfd, low hanging + uv. Nachhooo had some light green leaves onn his uv grow.

And lastly: high 660 have been quoted as easy to bleach leaves.

From what your plants look like in stance, praying and happy looking, this might be a luxury problem, maybe they just have enough light? I bet your g/w is going to be wild, better get ready to support your branches...

 

[cobshopgrow]

yes, their posture is fine and theyre perking up, but needed to dial it down a bit.
all my problems are absolute luxuary problems.

i always love to see ratios @lukio , that always helps to get a better idea.
i just found genegrenes jacks ratios
114/93 incredible high mg.