Custom DIY 240 watt 6 bar LED grow light!!

what does 80CRI mean i fought kelvins are what i should look for?

amneziaHaze said:

what does 80CRI mean i fought kelvins are what i should look for?

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CRI is color rendering index which is a number out of 100 for how true colours appear compared to how they would appear under 100CRI (sunlight). Some growers believe the higher CRI is better or easier to grow under I don't know if that's ever been proven scientifically.

colour temperature K is different that tells how red or blue leaning the spectrum is. The sun has a different colour temperature at different times of the day and season. Some growers prefer low colour temperatures (2700-3000K)for flowering because they have more red photons which favour flowering response in plants. And High colour temps for veg as it keeps growth compact and branchy (4000-6500K).

i am trying to figure out how you calculate all your stuff for the lamps but i just cant figure it out.

what can you do with https://www.futureelectronics.com/de/p/Led-lighting-components--led-lighting--led-Modules--mid-power-led-modules--linear-mid-power-led-modules/bxeb-l1120z-30e4000-c-c3-bridgelux-6115975
in a 120x120cm grow box?
what kind of driver would i need?