Turning coal into...Ok ..Silver!

[stardustsailor]

This Lemon Kush seems to like them more than you do.

LOL! Yeah,it seems so !

Still..
I'll tell you this ....

If one 640 nm hamamatsu chip red led (the ones used in astir panels ) was double the distance from plants that this epiled red led is ,
green tissue would probably ( 99%) have been severely damaged from excess light ..
IF it was an OSLON hyper red that close to the plant ?
I can not even imagine about it....

The peak wl is right ,of those reds ....(at least when operating as cool as possible ..)

As for the output power levels....
Well ,you can see for yourself ....

 

[MrFlux]

They are running very low, about 220mA. But even with the vero 10 (3W of pure light) the leaves can be just a couple of centimeters away with no ill effect. I have found that extra magnesium prevents light bleaching to some extend.

 

[stardustsailor]

They are running very low, about 220mA. But even with the vero 10 (3W of pure light) the leaves can be just a couple of centimeters away with no ill effect. I have found that extra magnesium prevents light bleaching to some extend.

Interesting ...
Well,it does have a logical base behind it,at least ...

Magnesium,is mainly used to form Chlorophylls...
At high red irradiation plants do synthesise more and more chlorophylls (and smaller -smaller leaves )..
( Up to a certain point.After that starts the photo-saturation ..)
Thus needing more Mg....

Yes,I 've noticed that also .During vegging mainly ...
With all kinds of red leds ...But especially with the 640-660 nm ones ...
An excess number of 620-630 reds is needed to see something analogous,as with the deeper reds ..

Good point...

But even with the vero 10 (3W of pure light) the leaves can be just a couple of centimeters away with no ill effect
????

!!!! My white Oslons (36 in total @700mA NW 95 CRI 4000K +WW 80 CRI 3000K ) are bleaching the tops ,if closer than 25-30CM ( ~1 ' )!!!
BUT...
They also emit at 80°...

 

[Positivity]

I have a theory. Get enough white in the mix..bleaching magically disappears.

i expected loads of bleaching with all my red leds after past experiences. Ummm...not quite. I had one tiny bleach spot so far from a bud about a inch from my 360w light.

Too much lasers with monochromatics...not enough broad spectrum love.

Had I had my glh spectra or prosource this close I'd have bleached out tops everywhere. And they are a fraction as bright as this light..

 

[stardustsailor]

I have a theory. Get enough white in the mix..bleaching magically disappears.

i expected loads of bleaching with all my red leds after past experiences. Ummm...not quite. I had one tiny bleach spot so far from a bud about a inch from my 360w light.

Too much lasers with monochromatics...not enough broad spectrum love.

Had I had my glh spectra or prosource this close I'd have bleached out tops everywhere. And they are a fraction as bright as this light..

View attachment 3027798

Oh....No like ,have to spread some more rep before blah-blah...

Yes ,I agree ...Totally,in every word you said ...
For many-many reasons ...

About 20 or so for every single nanometer of light wavelength involved ..

Thus,many ....

 

[Positivity]

How do you like that high cri white osion color mix?

Might even flower better on its own than a 3000k 80cri?

think there is a efficiency penalty with osions also when comparing output to xml l2 or cxa. But the colors are accurate and beam built in which is nice. Good for testing and growing

thats where my interest lies lately. People experimenting with colors and showing proof of the results. Once the color choices become more standardized commercial will make more sense. But for now, with companies having a new spectrum every so many months or hiding the chips they use and not being transparent, DIY is the most logical choice. And not just showing spectrums..but grows under their belt from personal testing.

Seems the people growing in legal medical or otherwise scenarios should be the ones selling panels. They could freely show their results with herb...not lettuce or tomatoes.

Eventually a led source will become available that is so efficient and powerful it will make all this moot for the most part I think..

sorry for the long winded opinionated response...but had some free time

 

[stardustsailor]

..............................

How do you like that high cri white osion color mix?
I do not like it nowhere around during veg and early flowering...
Might even flower better on its own than a 3000k 80cri?
Way better !!!
think there is a efficiency penalty with osions also when comparing output to xml l2 or cxa. But the colors are accurate and beam built in which is nice. Good for testing and growing
Led Fatale ! Powerless ,many pieces to start having any effect ,considerablre FR power in such case then ...
But lovely to superb effects in flowering

thats where my interest lies lately. People experimenting with colors and showing proof of the results. Once the color choices become more standardized commercial will make more sense. But for now, with companies having a new spectrum every so many months or hiding the chips they use and not being transparent, DIY is the most logical choice. And not just showing spectrums..but grows under their belt from personal testing.

I agree 1000%
Seems the people growing in legal medical or otherwise scenarios should be the ones selling panels. They could freely show their results with herb...not lettuce or tomatoes.

Eventually a led source will become available that is so efficient and powerful it will make all this moot for the most part I think..

sorry for the long winded opinionated response...but had some free time

 

[stardustsailor]

Look how much they matter ,other "unsuspected",hidden to the "untrained eye " ,factors to make / design a growing efficient led grow light system /device ...
Visit another famous forum ...
National Frms , greek,grow journals ....
Search for 'Autofem led project '


Unefficient Eastern leds used ,ok ?
Passive cooling,
cheap drivers ,no lens,
whites + reds
(NW 5000K 70 cri -WW 3000 K 80 cri - 645 nm Deep red )
So far so good ....

288 Watts @plug ...


Weights in grams .....
auto jack 1: 62
auto jack 2: 60
auto jack 3: 35
auto jack 4: 43
bubblelicious: 85
sweet tooth 1: 58
sweet tooth 2: 54

Total : 397 grams ....
( 14 oz !!!! )
That guy is my friend .
He is telling no lies .

288 Watts at plug- 14 oz ,from unefficient cheapos .....

No other comments ,for today ....

Talking about' low efficiency' ,huh ....?

I can't just open people 's heads and stuff inside ,experience & knowledge ,can I ?

 

[PetFlora]

OK Mr smarty pants.

I have followed you for a few years.

Unless you know WHICH el cheapos to buy, and how to mount them properly (don't make me post some of the boards you torched along the way) you are most likely to wind up with light failure at many different junctions.

I just watched a YT video of an Eshine light where the entire pcb/chip screws in/out - no direct solder to heat sink. Hell, if they only last one year, the annual replacement cost should be a lot less than I spend for hot5 tubes AND the tech will improve

 

[Positivity]

Lol..^^

cant expect much more from a spectrum then that. Optimized for the most part..

 

[stardustsailor]

OK Mr smarty pants.

I have followed you for a few years.

Unless you know WHICH el cheapos to buy, and how to mount them properly (don't make me post some of the boards you torched along the way) you are most likely to wind up with light failure at many different junctions.

I just watched a YT video of an Eshine light where the entire pcb/chip screws in/out - no direct solder to heat sink. Hell, if they only last one year, the annual replacement cost should be a lot less than I spend for hot5 tubes AND the tech will improve

Torched boards ?
Who ?
Me ? when ?

....

No way !!!

LOL!!!

Anyway,you're absolutely right ...
" Unless you know WHICH el cheapos to buy, and how to mount them properly,
you are most likely to wind up with light failure at many different junctions. "

Yeap...

 

[caretak3r]

I've been trying to keep up, but so far I think the only direct store reference was satisled for the 1W neutral whites.

Torched boards ?
Who ?
Me ? when ?

....

No way !!!

LOL!!!

Anyway,you're absolutely right ...
" Unless you know WHICH el cheapos to buy, and how to mount them properly,
you are most likely to wind up with light failure at many different junctions. "

Yeap...

 

[stardustsailor]

I've been trying to keep up, but so far I think the only direct store reference was satisled for the 1W neutral whites.

From Satilsled,I've only used their CC drivers ...
(in the later to be ASTIR ASL panels ,which use the same CC driver ...

model L2030W-A
20-30x1watt ( output C 60-100V ,320mA +/- 5%
Tc= 75°C Ta = 50°C max ( +25°C ΔΤ max )


Why you do jot send an e-mail to Astirgrows.com ,and request anything about the leds you're interested in ?
They are a trusted source for those leds ..(and for the rest parts of the panels,I guess ..)
I'm sure something can be arranged..


They only work with three types of leds at the moment ...
As far as I know ...

NW 5000° K : CRI min 65 ,typ 70 ,max 75 / Output radiant power 400-730 nm @350mA : min 360 mW ,typ 370mW ,max 380 mW
Blue DIE :Bridgelux BXCD bins: 447 J1,450 J1 ,452 J1 (450-452 nm ,460-480 mW )

NW 3000° K : CRI min 75 ,typ 80 ,max 85 / Output radiant power 400-730 nm @350mA : min 300 mW ,typ 320mW ,max 340 mW
Blue DIE :Same as NW

Deep Red 640 nm:Output radiant power @350mA : min 270 mW ,typ 320mW ,max 370 mW .
Dominant wl : 640 nm .Peak wl : 658 nm .Spectral bandwidth 50 % : ~22 nm

(I was told ,yesterday,that they've changed the previous Hamamatsu chip their deep red leds had,with a better one.
-More efficient ,they said ..-
And from specs given ,I'd say it is ...
Do not know more info..Yet ..
The red 'versus' photo I've uploaded ,shows their new "mystery" chip..
I've used a friend's new Astir panels for the pics,and I thought they are still using the old reds ...
But I was wrong... and un-notified ,for the changes ...)

 

[stardustsailor]

I'm going to make 8 panels of 24 leds each (~200 Watts at plug ) ...

With an 'experimental ' spectrum ...
My 'eightballer " ..
....'Just to finish the game ...The last ball to the last hole .... '
LOL !

Let's see how it will perform ...

 

[PetFlora]

I vacillate between CW and NW. I suppose it depends on the specs, as well as how either interfaces with the choice of WW

I'm looking forward to seeing these in action

 

[PetFlora]

Interesting article on phosphors and IP (Intellectual Property) rights

http://digital.ledsmagazine.com/ledsmagazine/201403?sub_id=ZOQQmY8eDCG2#pg22

 

[stardustsailor]

"Restricted access " ,says Pet ,or smthng like that ..

 

[PetFlora]

You need to subscribe, but it's free www.ledmagazine.com

"Restricted access " ,says Pet ,or smthng like that ..

 

[Chronikool]

Stardust...wanna start playing around with LED's in the 670-700nm range....(testing Emerson) any suggestions on LED's?

 

[stardustsailor]

Stardust...wanna start playing around with LED's in the 670-700nm range....(testing Emerson) any suggestions on LED's?

He-he...
Yes,I 'm aware of couple of leds ...
Which probably take advantage of that so called Emerson Effect ...

Warm Whites 2700 K CR I95 + Hyper red (660 ) leds ...