Warpedpassage
Well-Known Member
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.
modular overkill led striplight build
- Thread starter cobshopgrow
- Start date
cobshopgrow
Well-Known Member
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.
zypheruk
Well-Known Member
@cobshopgrow looking dam nice man, what power at the wall do you reckon you will need for flowering.
cobshopgrow
Well-Known Member
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.
coreywebster
Well-Known Member
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.
cobshopgrow
Well-Known Member
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
cobshopgrow
Well-Known Member
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.
coreywebster
Well-Known Member
Cheers cobshop, will have a gander now.
cobshopgrow
Well-Known Member
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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coreywebster
Well-Known Member
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.
cobshopgrow
Well-Known Member
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?
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?
cobshopgrow
Well-Known Member
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.
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.
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cobshopgrow
Well-Known Member
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?
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?
Warpedpassage
Well-Known Member
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?
cobshopgrow
Well-Known Member
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,
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,
swedsteven
Well-Known Member
Wow nice light you kill it very efficient !
Rocket Soul
Well-Known Member
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
cobshopgrow
Well-Known Member
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.
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.
Rocket Soul
Well-Known Member
If it works dont change it. Props for getting pro with the spectrum meter.
cobshopgrow
Well-Known Member
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!