Re: Or_Gro and the epic smackdown
Posted: Sun Jun 23, 2019 12:42 pm
For what?
A friendly LED grow light community.
https://ledgardener.com/forum/
For what?
6kb too big for yours?Frank Cannon wrote: ↑Sun Jun 23, 2019 1:49 pmI was having a lille ole chuckle about avatar size....
Thanks....eyeballing it, looked like 50-60%Prawn Connery wrote: ↑Sun Jun 23, 2019 2:08 pmScreen Shot 2019-05-07 at 15.33.47.png
High Light (Red) at 2.5A
400-499nm = 11.4%
500-599nm = 36.8%
600-699nm = 46.3%
700-799nm = 5.1%
0.4% = >799nm
Yeah, it's a sisyphus job..Or_Gro wrote: ↑Sun Jun 23, 2019 12:41 pmMaybe you could drop by and show me how to do it on my spec.Randomblame wrote: ↑Sun Jun 23, 2019 12:18 pmTekniks test data show % of blue(400-499nm), green(500-599}, red (600-699)and far-red{+700nm). You could use these % values to calculate those numbers. But your spectrometer should be able to measure it exactly.
You can also calculate it from the SPD. @Alesh(rui) has made a good how-to .. But for what when you have a meter..
Can’t remember seeing tekniks %s....
The old school way is to lay a grid over the spectrum and count the squares...just too lazy to do it.
What the dude in the SETI video was saying was that to activate the stress pathway with 285nm you could use 10% of the power needed for 310nm. He was claiming 375nm was practically useless.TEKNIK wrote: ↑Sat Jun 22, 2019 11:52 pmThis is something that needs to be worked out I guess, I am sure there is a range of too little or too much that needs to be worked out, also spread needs to be worked out.
Or_Gro with his meters will be able to determine what is working best over a few grows.
I should also be able to provide some input regarding this with my meter once I have a UVB module set up.
10Watts of UVB should be plenty to cover a 4X4, maybe one module powered at 1W each per square foot should do it from what I have read.
Yeah, its important to not use just 285nm without UVA. In nature UVA is always much more like UVB and if you use more UVB like UVA the damaging effect is much higher.unkle_psycho wrote: ↑Sun Jun 23, 2019 4:33 pmWhat the dude in the SETI video was saying was that to activate the stress pathway with 285nm you could use 10% of the power needed for 310nm. He was claiming 375nm was practically useless.TEKNIK wrote: ↑Sat Jun 22, 2019 11:52 pmThis is something that needs to be worked out I guess, I am sure there is a range of too little or too much that needs to be worked out, also spread needs to be worked out.
Or_Gro with his meters will be able to determine what is working best over a few grows.
I should also be able to provide some input regarding this with my meter once I have a UVB module set up.
10Watts of UVB should be plenty to cover a 4X4, maybe one module powered at 1W each per square foot should do it from what I have read.
I think the actual numbers were 0.1mW per cm2 with 285nm, and 1mW per cm2 with 310nm. 4h daily dose.
Randomblame was suggesting there is more involved, then simply activating a pathway, with benefits increasing aside dose.