modular overkill led striplight build

Can i ask why you arent running the 660 and the 730 for veg. Id imagine it would help even in veg. Even if you ran them for half the day.

Warpedpassage said:

Can i ask why you arent running the 660 and the 730 for veg. Id imagine it would help even in veg. Even if you ran them for half the day.

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valid question! please feel free to ask.

In first, cause i dont know better, new setup, guide me

Second this is a new setup and as a first step i would like to have my plants healthy.
I could imagine giving the plants lots of 660nm could be too much at this stage, they will add quite some ppfd (while the 660nm can be dimmed also), can be complete wrong of course.
730nm i didnt used so far to avoid any extra stretch, but again, am open for suggestions!

Third and and least important, idea is to make it all energy efficient.

Am pretty astonished how much light there is allready with just these 48w from the wall.


One thing i forgot to say, they where vegged under 6500k most of their time, to explain their structure.

@cobshopgrow looking dam nice man, what power at the wall do you reckon you will need for flowering.

zypheruk said:

@cobshopgrow looking dam nice man, what power at the wall do you reckon you will need for flowering.

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thats a good question, looks i will have to find out.
Previous i had 6 KB 288 board running, think it was a good 280W at the wall, same driver, same tent.
And that was allready plenty light, needed to take a bit care.
Now this setup utilize the driver better, so i can draw 327W out of it.
Efficiency wise both should be in the same ballpark, chinese LM301b driven low to Bridgelux EB3 driven very low.
So i maybe need to dial down the mainlight and cant go full with it in the end.
The 660nm section isnt that weak either, play some role.

I dunno, this time its winter, colder, new strain, i dont use extra co2, its a bit experimental here.

cobshopgrow said:

a little update.
i put some critical 2.0 under the lights, just using the 3000k 80cri channel so far, wanna veg them a bit more.
as always it takes me a bit time till i have it dialed in with a new setup.
the plants where not able to take 80w (wall), the light is about 30cm away from the tops.
View attachment 4431503
i dimmed the light down to 48w and theyre going better now 48h later.
Hope to be able to give them some stronger light soon.
View attachment 4431504
View attachment 4431505
View attachment 4431506 View attachment 4431508
CO2 Temp RH level is ok, me think.

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Oooo you have the same co2 Monitor as me, which is nice to see, I wasn't entirely sure how accurate it was because the price was pretty good, but the fact it was made in Germany was reassuring.
Only reason I had any doubt was because It was reading higher levels than I expected when I first plugged it in.

coreywebster said:

Oooo you have the same co2 Monitor as me, which is nice to see, I wasn't entirely sure how accurate it was because the price was pretty good, but the fact it was made in Germany was reassuring.
Only reason I had any doubt was because It was reading higher levels than I expected when I first plugged it in.

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i think its made in usa and just rebranded as far i read.
It is the cheapest option using a "real" co2 sensor and read some comparsions to more pro units, good enough for us.
But, hm, think what can be tricky, they recalibrate once in a while and take the lowest reading asuming they where in normal atmosphere, 450ppm or so (makes my english sense?).
The usa original have some more buttons, you can calibrate etc.
The buttons are also on this unit to change the settings, just open the case, i never played around with it, but i probably should

coreywebster said:

Oooo you have the same co2 Monitor as me, which is nice to see, I wasn't entirely sure how accurate it was because the price was pretty good, but the fact it was made in Germany was reassuring.
Only reason I had any doubt was because It was reading higher levels than I expected when I first plugged it in.

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corey, when you want check this out.
to set the functions, you need to open the case for it.
there is some software too if you wanna log.

cobshopgrow said:

corey, when you want check this out.

http://co2meters.com/Documentation/Manuals/Manual-RAD-0301.pdf

to set the functions, you need to open the case for it.
there is some software too if you wanna log.

http://co2meters.com/co2mini/co2mini-install.zip

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Cheers cobshop, will have a gander now.

coreywebster said:

Cheers cobshop, will have a gander now.

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forgot to say,if the meter reads something around "The global average atmospheric carbon dioxide in 2018 was 407.4 parts per million "
you should be fine.
I had a very crappy room air quality monitor before, the readings are complete rubish, random, this one seems to be ok.
edit: of course the 400ppm should be outside, or at least good ventilated room, well you know for sure.
I think lowest i had is 420ppm, have a street nearby, was plausible.

cobshopgrow said:

forgot to say,if the meter reads something around "The global average atmospheric carbon dioxide in 2018 was 407.4 parts per million "
you should be fine.
I had a very crappy room air quality monitor before, the readings are complete rubish, random, this one seems to be ok.
edit: of course the 400ppm should be outside, or at least good ventilated room, well you know for sure.
I think lowest i had is 420ppm, have a street nearby, was plausible.

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I get readings of 700-800 in my grow room. But 2000ppm in my living room. This worries me.
Looks like the calibration when selected will assume a level of 400ppm at the lowest reading over 8 days. Sounds like if I calibrate it will do it 8 days later taking readings and using the lowest as "fresh air"
So I think I must place it outside (on window sill) for 8 days to get a reliable calibration.
Or have I misunderstood?

Edit, there are people gassing off and a log burning stove in the living room.

exactly how i got it too, what you descirbe is the preset for our unit.
You can set a fixed calibration, using the buttons, never did, dont know whats better in the end.
Will have to take it out to a well ventilated roon and see what it meassures.
I mean 2000 is high, but i guess you smoke your flowers there, dont you?

havent got it right, as far i understood he saves the lowest meassured value within 8 days, so put it once outside, hour or so, and let it run, should do the trick.
Think i will use my small well ventilated bathroom..... wait ill do it now.

Ok, tested it.
Put in the bathroom, open window, me outside of the room.
Lowest i could see was 432ppm, put it back now in the tent, again 680 ca., no big change.
There will be also some clever logic internally for the calibration avoiding bigger mistakes and simply do it right for us.
Probably good to have the meter from time to time in some fresh air enviroment to let him get a new reference.

For the lamp, i think today i can start to give more light, unsure which, 3000k or some 660nm blast.
Maybe a little bit of 660nm today to get em used to it?
Unsure about 730, maybe we start a lil later with it to see its effect better?

cobshopgrow said:

For the lamp, i think today i can start to give more light, unsure which, 3000k or some 660nm blast.
Maybe a little bit of 660nm today to get em used to it?
Unsure about 730, maybe we start a lil later with it to see its effect better?

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I would turn on both the 660 and 730. Since you are currently running low wattage per sq ft at the moment, you will benefit from the Emerson effect by incorporating the 660, 730.
I am a bit confused though, you are running about 7ish sq ft, and running only 48 watts? Thats like 7 watts per sq ft. That cant be right. Did i miss something?

the 7 watt per square feet should be about right, i was astonished about the low value too.
This gave me just about 10k lux at the tops.
Plants couldnt really take much more a few days ago, 80W and they dropped the leaves after a few h.

So i give them now:
58W 3000K
15W 660nm
6W 730nm

Will raise the intensity even further, especially later in flower i try to give as much i can.
So far they love it,

Wow nice light you kill it very efficient !

cobshopgrow said:

the 7 watt per square feet should be about right, i was astonished about the low value too.
This gave me just about 10k lux at the tops.
Plants couldnt really take much more a few days ago, 80W and they dropped the leaves after a few h.

So i give them now:
58W 3000K
15W 660nm
6W 730nm

Will raise the intensity even further, especially later in flower i try to give as much i can.
So far they love it,

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Ive seen most people adding 4:1 ratio with 660-730. More 730 might add some stretch but that might be ok. Id defo go for adding the monos and not only white. I think 660 may help with opening the stomata a bit, not sure though

ok then i will raise the 660nm even further next, without taking in to account whats there in 660nm from my mainlight.
i have a c7000 spectromaster ordered, but it will take 2 weeks or so to get it.

So far plants are doing great with above ratios.

cobshopgrow said:

ok then i will raise the 660nm even further next, without taking in to account whats there in 660nm from my mainlight.
i have a c7000 spectromaster ordered, but it will take 2 weeks or so to get it.

So far plants are doing great with above ratios.

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If it works dont change it. Props for getting pro with the spectrum meter.

swedsteven said:

Wow nice light you kill it very efficient !

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driven that low theyre really in the ultra efficiency mode now.
that they cant take that much light have probably also other factors too, guess they simply needed some more roots to store the energy.
Theyre in veg now, so there is room to play.
I will course increase the light intensity further, be sure!