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Theres a difference in throw. You can easily build a light with strips which is homogeneous in diode density. But that will give a hot spot in the centre due to cross lighting. Which accentuates with hanging height. Cobs are more like point like, you can put one each towards the corners and...

OP: if you have the air temp and leaf temp by different sensors there maybe that the difference is not actually that large, two sensors may measure slightly different. When working with vpd i always think that its more an indication on which direction moving your climate, the actual indicator if...

Or maybe a blind spot for air movement? OP: if you dont change anything in the setup take note of the area and keep an eye out in future grows.

This! I havent tried it myself just know that it seems to be solidly recommended. The only thing that would talk against it is that the red supplementation is fairly low, but you can grow solid with white only so shouldnt be an issue. But research actual users and growlogs. And remember 1000ppfd...

I un-lazied myself and dug out the link: https://www.viparspectra.com/products/viparspectra-2023-design-xs1500-pro-led-grow-light Flip thru the pics and theres some info on even light spread and parmaps. For a budget 2x2 my guess this is probably one of the best around. Assuming vipar isnt...

How many whats is the 2000? I though 200 but seems like low light levels for 50w per sq foot. I know y Vypar is supposed to have a fabtastic 2x2 light at 150w, with a much more even spread that mos chart. Cant remember the exact model but vypar 150 something.

Dont think we ever crossed paths but allways down with the diyers. And thats not some abomination just smart design, avoiding the hotspot. What spectrum crees? The veros come in a few specialty spectrums like those old meat chips that are pretty much only red. Post the build and please let us...

Plants look like they approve of the build, very nice plant stance. Looks like they will soon outgrow the light. Welcome (...back??) to riu, you show up as a pretty new member but maybe been on here previously?

Hey OP, how much approx would the parts needed cost?

I agree on light intensity. This reminds me a lot of how our plants look towards the end, similar to led fade. We get those yellow/purples when we withdraw nutes at the end especially on top buds and leaves. It may very well be that your pushing your plant further than your organic soil can...

Or in case, with two separate types of strips, you could connect them in series and then parallel strings. As long as you have the same amount. Another way would be daisy chaining, but it uses lots of wagos.

The bar light 60w is not the same as on your light, it seems like different spectrum. In any case the driver determines the watts not the strip. Have you tried calling them? Theres a number on their web. Sorry, cant really determine the board layout. 360white in 3 rows, grouped in clusters of...

Another strategy would be raising night time temps in you tent a bit, this will lower RH. But as always the humidity needs to be evacuated from the extended space somehow. Its worth remembering that + transpiration means + growth and + humidity; the better you are at growing your plants the...

Anyway you could do a zoomed out shot? So that we can see at least a couple of those red places where thers red diodes? Seems like maybe 17 white chips + 2 reds in series. That would suggest voltage of around 55V but cannot guarantee.

I think i agree seems like we are making the same point? Ive never grown with the EVOs so i havent seen how it affects the plant. We had really good results from adding 660/680/400 to a 450based 2700k 90cri spectrum. My thinking is to make sure you have atleast some coverage of the entire par...

Another argument for the 437nm blue peak is that the standard 450nm blue peak dont seem to to target both chloro A and B while 437 has decent coverage of both. Best bet, spectrum wise, would be getting something like half EVOs half regular b, a la HLG.

Chill out Frank, im not saying dont email them, im just saying this is how most companies operate and not to be surprised if they wouldnt help. Ive heard a fair few forumers complain about their Sosen drivers failing. In any case a Constant power driver will probably do the trick. OP: if you...

There might be liability issues for Sosen; youre asking them "i need the right thing for X product by Y company" : if they send out the wrong thing theyd be liable if something went wrong(or at least in a normal country, kinda hard going after them legally in china :) ). Best bet would be...

In my understanding the driver dimming can control the total current coming out of the driver, however even in CC mode, it doesnt control the distribution of that current over different voltage strings. Once the current is out of the driver the it just follows laws of physics which means the...

I dont know how much of a danger thermal runaway is in practice. Ill have a crack at explaining it but im abit shy since theres electricians on this thread. From what i understood and im happily corrected if im wrong: the lower voltage/resistance strings is where you will see a bit more...