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Chlorophyll B absorption peak is 452nm-455nm based on what you cite. Basically dead on th a standard blue pump white LED. Often the other side of the SPD is overlooked, chlorophyll A's red responds directly to the 660nm. So 437 would be mostly be targeting chlorophyll A if adding 660nm too. 450...

So you have emailed Sosen? Since progrow ain't answering him...how do you suggest he finds out the board specs? Can't measure if you can't power it up? You think he has an adjustable bench supply to hook up and find out? Think he has an Xray machine to see the traces and do the math? And...

Seems you guys are stuck on the driver and its current output from some reason. A runaway board/diode takes current from the other boards/diodes...not from the driver. Example(again, pretty worst case, but thats how you easiy show a concept)... -drivers max current = 2.5amp -each boards max =...

Main difference is the based blue chip they start with. -Original 301B/H use a standard ~450nm blue die as their base chip. And a very efficient package. -301H EVO uses a ~437nm blue die as its base chip. Higher energy(moved closer to UV) and at the same time, a higher photon efficacy as well...

Email sosen, say the manufacture isn't supporting a replacement and you wodu like to know what driver they used and would buy one from them to replace.

Path of least resistance. More current will always want to go down the lowest voltage strips. And could get away from its self and keep hogging until failure. Current hogging...runway...issues commonly related to uneven parallel loads. If you are going to run 2 or more different model strips on...

By upgrading Samsung’s highly successful 2835 packaging structure, the LM281B+ Pro delivers an exceptionally high degree of reliability with a surprisingly long lifetime. The new structure increases the temperature cycle to 500 cycles between -45℃ and 125℃* — more than double that of the...

Do you have any idea what you are showing? No currents or temps referenced. No idea of equal or not max temps....come on dude...put just a tiny bit of effort into this. Let me spell it out for you since you'll never do it... K seires 256led($10) vs F series 144led($15) Design 1 in the pic is...

My case and point... K series... 256 281 Pros ...~$11....hell you buy enough of them you could get them for $9. 5630's are dead. 2835 are the present and future. Even 3030's are on their way out essentially. Pros have 2X the thermal cycling ability than the regular. Also pros use the best...

Some top end sammy strip options in stock right now... Horticulture strips... 301H EVO's so lower 437nm blue spike instead of 450nm like normal. https://octopart.com/search?q=SI-B8T502560WW&currency=USD&specs=0 H-influx strips- L09 = 16S x 8P using 301B evo's...

When you keep saying 561c strips...hard to read when a person knows what is an actual 561c based model. That's not a model of strip at all. Multiple samsung strip models at the time used 561c's. Not just the F-series that you are probably attempting to reference. With that said, 561's are...

As promised, and to keep to consistent and accurately presented and cited information... Here are the official CREE Pro9 ppf/flux conversion factors. 6500K pro9: 0.01460 5000K pro9: 0.01460 4000K pro9: 0.01473 3500K pro9: 0.01445 3000K pro9: 0.01467 2700K pro9: 0.01439 Big note is they are...

Here is a consistent look at the phosphor techs over the same LED chip in the pic/attachment Cree G-class 2835 in 80cri, 90cri, and pro9 in 4000K CCT. The table is specifically in radiometric output. As you can see the pro9 is putting out more energy across the board. Then 80cri, followed by...

Only thing from Teknik is standard 90cri EB strip. Where are his KSF test? I can just ask him myself, but youre saying its there in that link? Led-Tech only having f90 or thrive of their own board to compare.

KSF has been around a long time, Cree first used it in 2017 in COBs called "etone" for those who have been around long enough. But GE/nichia put a stop to that legally. Now days it's coming back as the tech and legalities behind it, have been stabilized for the most part. GE/Nichia's licensing...

One would almost say the opposite. It's spectral as much as efficacy based compared to plain mint. The whole point is to be able to target all blue, green, and red ratios more directly/independently as well as in the most efficient ways to do them. The white photophylls allows change to B:G...

Commonly used IP68 watertight connectors, https://amzn.to/3SBw0uI

Ok. So you have light already. Which all have a PPF output...which is your maximum amount of carbon fixation, no matter how you move them. The light will not output more than their PPF, no matter what your instantaneous spot PPFD is. The light movers allow you to take the hot spot that may be...

Photon saturation and efficiency. 2000ppfd will not be used at the same efficiency that 1000ppfd would be. Well into diminishing returns even at high CO2 levels. But conceptually yes, 43.2DLI is 43.2DLI. Being that carbon fixation is quantifiable via photon count, DLI is your total available...