Cree XPE Photo Red 660nm mA?

[jarvild]

You'll need some 740 nm up to 660 also for balance

 

[mauricem00]

You'll need some 740 nm up to 660 also for balance

not with the violet leds'when plants recieve enough violet the emerson effect goes away you need a lot of red and very little blue for this efect to occur.in fact with enough violet light chlorophyll a emmits deep red as a waste product https://academic.oup.com/jxb/article/51/345/659/652534

 

[jarvild]

not with the violet leds'when plants recieve enough violet the emerson effect goes away you need a lot of red and very little blue for this efect to occur.in fact with enough violet light chlorophyll a emmits deep red as a waste product https://academic.oup.com/jxb/article/51/345/659/652534

You do realize that those are just summaries of testing done back in the 90's and before, things have changed since then, no actual test done by the author.

 

[mauricem00]

You do realize that those are just summaries of testing done back in the 90's and before, things have changed since then, no actual test done by the author.

I don;t think our plants have changed and have seen no studies to contradict. this one' red and far red a still needed by the plant to drive phytochrome but not used by chlorophyll A if enough violet light is available

 

[jarvild]

It's still a summary of antiquated test, believe what you will, that's fine. I still rely on what the plants tell me.

 

[mauricem00]

It's still a summary of antiquated test, believe what you will, that's fine. I still rely on what the plants tell me.

I refer real science to "BRO-SCIENCE" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4030627/ PUBLISHED 2014. LED makers have always claimed that plants don't light that LEDs can't produce but I have seen some nice plants grown with T5s which have very little deep red(660nm)