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again this SPD is not 3000K ... it´s 3526K cree peaks at 640nm FCO peaks at 660nm ... Stokes law will tell you the difference.... 450nm/640nm versus 450nm/660nmm

landplants have no Chlorophylls D or F (see MCCree) just only phytochrome as a sensor Pigment for Far-Red. Chlorophyll a and b comes in different bindings on the molecular level which results in different absorption wavelengths. but non of them are higher then 700nm Photosystem I...

any driver regardless how it works transfers energie energie is simple watts - watt in this case is voltage x ampere in short(P= U x I) just a simple Example 100W with a lossless Driver needs on the mainline 100 Volt and 1 Amp. 100V x 1A = 100W on the other side of the driver we can now go...

and mother nature puts the plants into sleep all day long at this level of Far-Red...

3000K90CRI_min.csv.zip a CIE Calculation results in 3500K for this file

nop you are a Pescetarier

try this with a vegetarian

Give them Tables, not Math! it works better for over medicated Brains

the hard way......google "constant current mosfet op amp" or use Bucks .... Meanwell LDD-H...LDH-45 Recom-Power RCD-48 btw. 36V is damn low for this idea....

no wonder for that number of Diodes and LES

ahh, you found the FAR RED Chlorophyll..... anyone else grow stromatoliths here? https://en.wikipedia.org/wiki/Chlorophyll_f

if you can live with the voltage loss and the additional Heat

you can find this Numbers in the Cree Datasheet

my price 18.25 € Mouser USA 20.83 $ http://www2.mouser.com/ProductDetail/Mean-Well/LPC-60-1050/?qs=O2yOKspD61CwHxEZesuS%2Fw%3D%3D

Meanwell LPC-60-1050

plant(leaf) temperature lower then Ambient temperature? can happend but normally the leaf temp is higher, http://plantsinaction.science.uq.edu.au/edition1/?q=content/14-1-2-plant-temperatures

Ir sensor "MLX90614" https://developer.mbed.org/components/MLX90614-I2C-Infrared-Thermometer/

photon flux [µmol/s] / area [m^2] = photon flux density [µmol/s/m^2] photon flux = 1000 µmol/s Area = 1 m^2 1000 / 1 = 1000 µmol/s/m^2 so for one square meter the photon flux = photon flux density! ever heard about the inverse law of light? distance is a main factor in this calculation...

zip it

sure you did the connection as shown here? next idea is ... disconnect 1 cob, so only 4 in series now ..power up and see what happend repeat with next Cob if there was no light.