Astir Grow Led Panel Project...

(Loud voice from above ,with lots of 'spring echo'....
Add some thunders ,to make the scene more dramatic... )

So,Spiran77 ,my child....
Have you become a true believer of Led Gods of Light ?
Or you still have faith in the fading-away HID Gods ?
(Lots of thunders strike,when voice stops...)

...
BTW....
Why the heck ,you 've put the 400 MH ,together with the leds ?
Not enough space ,to keep 'em separated ?

xaxaxaxa,yes i think from now on i will recomend led lights at least for vegetating(lets see how the flowering panel will work)they are much more productive ,the mh was for comparison purposes and as you said there is not a lot of space...
keep searching the light for us

tolakra is right,the first time we turn on the panels was ''enlightening''

[FONT=Verdana,Arial,Helvetica,sans-serif]Most of us tend to think of geometry as a relatively dry, if not altogether boring, subject remembered from our Middle school years, consisting of endless axioms, definitions, postulates and proofs, hearkening back, in fact, to the methodology of Euclids Elements, in form and structure a masterly exposition of logical thinking and mental training but not the most thrilling read one might undertake in their leisure time. While the modern, academic approach to the study of geometry sees it as the very embodiment of rationalism and left brain, intellectual processes, which indeed it is, it has neglected the right brain, intuitive, artistic dimension of the subject. Sacred geometry seeks to unite and synthesize these two dynamic and complementary aspects of geometry into an integrated whole. Robert Lawlor addresses this fundamentally dualistic nature of geometry in his essential work: Sacred Geometry – Philosophy and Practice (1982), in reference to a medieval representation of geometry as a woman seated at a table, with compasses in hand, surrounded by the implements of the art:
More at this link: http://www.redicecreations.com/article.php?id=22105
[/FONT]

stardustsailor said:

Well done TenThirty...
@ reactiv8ion,if you find a MeanWell driver to suit your needs,you got yourshelf ,one of the best quality CC led drivers,around ..
I agree with TenThirty's suggestion...
(They are not so expensive ,afterall ...)

Click to expand...

One of the things I did early on was remove the driver issue, meanwells, there done. Now only two things leds and thermal management.

spiran77 said:

xaxaxaxa,yes i think from now on i will recomend led lights at least for vegetating(lets see how the flowering panel will work)they are much more productive ,the mh was for comparison purposes and as you said there is not a lot of space...
keep searching the light for us

Click to expand...

You still have doubts...
Gods Are Angry...

For your sins to be forgiven ,you must "create" & "sacrifice "....

1) Create : Solder by hand ,at least ,240 light emitting diodes...
2) Sacrifice: Solder ,at least 20 red 660 nm leds in series .
Then drive them with current ,at least 50 A !!!
For proof ,of the sacrifice,you must record the whole "ritual" ,on video.
Then upload it on YT ,with the title " Fry baby,fry ! " ...
...
...


( Hey ,I'm just kiddin' ,alright ? )

of course you are kidding...although i wish i could do that...create the light that i will use by myself

Hmm, I run into some problems with the calculations. Assuming that I use the 4 red : 4 warm white : 3 cool white : 1 blue - the percentages given by www.buildmyled.com/custom-led-strip are based upon the assumption that I'm using leds from the same manufacturer and the same series.
However, since I'm using Samsung's series 3535 whites, which are the same league as Cree XP-G series, these little buggers are suppposedly waay more efficient at 700mA than Osram Golden dragons are. In fact they put out nearly double the lumens. Having that in mind should I adjust the ratio?

SirShmokealot said:

Hmm, I run into some problems...
However, since I'm using Samsung's series 3535 whites, which are the same league as Cree XP-G series, these little buggers are suppposedly waay more efficient at 700mA than Osram Golden dragons are.
In fact they put out nearly double the lumens. Having that in mind should I adjust the ratio?

Click to expand...

you can read and understand Datasheets from cree, osram, samsung...?

guod said:

you can read and understand Datasheets from cree, osram, samsung...?

Click to expand...

Read -yes, understand and interpret - not so much. With Osram and Samsung I get only data for I=350mA. Anyway I'm not technically inclined (economy major), so I get confused easily.

11th day...
Still some "canoeing" on some leaf edges...
(I get that often..
Since my... Hidhood...
Any ideas,why ?)

Edit:
Today I was doing hard agricultural work...
Picking(harvesting ) olives from their trees...
Well,"picking " it's rather simple word to describe how hard task that is..
Anyway...Picked the olives from around 50 trees...Approx. 1200 more to go ...
I'm totally exausted...
UB's topping ,soldering a panel and placing 3 more panels can not be done today...
Not by me,at least...
So...
Tomorrow,the day after...
Dunno...
When I'll find the courage,to do them....

SirShmokealot said:

Read -yes, understand and interpret - not so much. With Osram and Samsung I get only data for I=350mA. Anyway I'm not technically inclined (economy major), so I get confused easily.

Click to expand...

some help

from the datasheets for coolwhite

osram golden dragon+
typical Luminous Flux: 116lm at 350mA

Cree XPG
min. Luminous Flux: 130lm at 350mA

that´s not more than 15%, and it will not go much better at higher currents.

btw. the design of the golden dragons is over 6 years old


if we want to know the flux for different currents we have to use the
"Relative Flux vs. Current" diagram for the specified Led

here is one for the Cree XPG-Led


at 350mA we have 100% or 130lm (red lines)
at 700mA we have approximately 180% or 234lm (blue lines)

Osram GD+ has approximately 170% at 700mA

11 days and look at this beautiful growth!!!(only with 3 panels )...Wish to be females!!

@Spiran your plants are looking healthy too

Hey guys small question real quick. I plan on building an LED panel shortly, 50-60 watt around 36 LED's. What would be optimal spectrum? this is going inside a rather large PC case by the way. Going back a few pages im getting the vibe that 1 blue, 2CW, 3WW, 1 red? is that a good ratio to follow? just seems like too much blue light to me.. but i dont know because i am not aware of what spectrums the white LED's break down into.. thanks a bunch! when i build the panel ill keep you guys posted on its performance. Pinstripes PC grow really inspired me!

EDIT: thinking more of a 28 diode set up now. Considering the whites will be XP-G's and i will be running all LED's at 700mah. Shooting for 60w actual power in a roughly 24" x 9" PC case.

@Spiran your plants are looking healthy too [/QUOTE]
thank you man,i hope they remain like this

SDS, canoeing usually comes from low humidity.. the plant does this shape in order to be able to keep more water on his leaves... also it can be a ph minor problem maybe??


do i see less perlite in yor pots this time? isn't a 50/50 peat/perlite mix ?

Hey there guys,

very nice work so far...keep developing


My reds arrived yesterday...

SDS is there a way to light up only one of the leds ?

2 batarry 1.5+1.5 v

ganja 2 said:

2 batarry 1.5+1.5 v

Click to expand...

But one led = 1 watt...if i connect it with 1,5+1,5= 3 w maybe its going to burn...