Weeze .......? are u there ?Quote:
Originally Posted by waterdog
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Weeze .......? are u there ?Quote:
Originally Posted by waterdog
Right behind ya brah. :D
Why would you wonder?
Sent you a private message via reputation.
Guess you missed it.
Apology accepted.
Mahalo fo' dat. I had completely forgotten.
No worry, I understood your position.
Did not see it as a personal attack.
Saw it as a reaction to unexpected results.
( I get a lot of that) :)
Didn't believe it myself when I first started reading about LED growing.
That's why I had to try it in the first place.
The science was sound, but it had a ring of "too good to be true" about it.
In retrospect, it should have been obvious to me because the sun is such a harsh master.
At noon, in the tropics solar exposure exceeds 91K Lux.
Cannabis stops growing at ~90. unless you supplement CO2.
Even then it pushes transpiration to capacity.
Meanwhile, the UV b-c is frying off capitate glands, overheating leaves and stem, heating and drying roots near the surface, yadda yadda.
Homeless plants have a hard life here.
So, I shield them from harmful wavelengths.
Give them sufficient, (but not too much), light energy at the most efficient wavelengths.
Feed them appropriately, insure an ample supply of aerated water and a pest free home.
With all that in mind.
My results were predictable. :)
So, fuggedaboudit!
There was no offence.
Aloha nui, an' how does your garden grow?
Wee 'zard
Nothing like a respectful apology. I love the community here, so respectful and willing to help. Either way, I think I'm going to post here now, instead of my LED thread, at least until I start building the box and post up the grow log.
in order to lower costs, I'm only going with half the LED's for the single rubbermaid grow box. Should be around 22w, but I'll probably put in a decent powered CFL to make up for the rest of the spectrum. I'm pretty sure 22W will do fine, Pinstripe over at ICmag got 38g from 22W in a PC box (Anyone that respects any grow should check that out, crazy micro grow, probably the best documented one), and I'm going to be using his technique (LST) and further improving it with a SCROG.
The LED's and the drivers are going to be 100 shipped. I've been looking at Phillips Lumileds Rebel LED's, specifically three of them, mounted on a MCPCB (called Tri-star). I'm going to have 1 royal blue and two far reds on each tri-star, what do you guys think?
Hey guys, first post here! I'm trying to find a good strain that grows well under LED's in a SCROG. Any suggestions? Thanks!
Sure!
White Widow loves leds and is easy to grow.
Aloha,
Wee 'zard
Thanks Weezard! I've grown White label white widow under a 400w hps and was very satisfied with the results. Any suggestions on a seed bank? Seems like the white widow strain is different depending on the breeder.
Aloha, Weeze. Different forums, same t'ings, eh? :thumbsup:
Instead of a white label, try the 'black label' - specifically, the original WW as bred by MNS. Used to have some in my garden, not the biggest producer, but you definitely won't be disappointed. Can't link to it due to rules; just search for the following:Quote:
Originally Posted by Marijuanadonna
"Black Widow - Mr. Nice seedbank and research - Strains"
Aged 18 years now, and smooth as silk. Girls that old are the perfect age...or so they tell me. :cool:
Cheers,
-SX
Thanks SX. I've recently been looking at Dinofem's Critical+. It seems perfect: very high yields, potent, and tasty. Just don't know how it will do under LED lighting. Has anyone grown this strain under LED's?
I've seen this exact strain grown under white and deep red leds only with amazing results. Best buds I've ever seen anywhere actually. They were the size of my calf.Quote:
Originally Posted by Marijuanadonna
They guy made a led fixture using 12 neutral white 3w, 12 deep red 660nm 3w and 4 630nm red 3w. I've never seen buds this nice before. Critical is a good heavy duty strain with big yields.
@anyone,
Could someone please tell me the reason NOT to use multi-chip emitters? I see this talk on here worrying about if a led is single or multi-chip. From everything I've seen a multi-chip emitter will run more efficiently giving you more lumens/W.
There are pure white leds out there that are using 100w 100 chip single led emitters in a dense matrix. They pack a huge punch and people are growing straight up trees with them. Ya know, eventually up the chain, it would not make any sense to have single chip/die emitters in the higher wattage territory. I don't understand why this wouldn't apply for lower wattage leds as well.
Why would a person be worse off to use a 3w 3 chip led vs a single chip 3w led? I just don't get it. The datasheets say the 3w 3chip leds put out more lumens/W.
Could someone please explain what I am missing about this issue?
"The datasheets say the 3w 3chip leds put out more lumens/W."
The answer is in the question.
The 15W Ledengin emitters are actually 4 X 5W. dies.
The use about 3W. per die and should last a very long time with decent heat management.
They put out more photons because they are kept in the "sweet-spot" of lumens per Watt.
The epoxy lens makes them as close to "point source" as the need to be.
And they cost less to manufacture than high power, single die emitters.
(They get fewer defective chips per wafer after sputtering).
Bottom line?
Photons per watt per dollar, yah?
Havin' fun yet?
Aloha,
Weeze
I talked to Ledengine the other day. Just so everyone knows, the new 10w chips are the same as the old 15w chips. They are just advertised as 10w because they are driven at 700mA. They said that the chip in all of their Leds is the same, just mounted to a different base, or put in as multi-chip Leds.Quote:
Originally Posted by Weezard
When you guys purchased the 15w emitters, what was the forward current advertised. My guess is that it was 1A. Am I right?
Wait a minute, I guess they would be 1.5A? Is that right? They don't even advertise them anywhere anymore, so I have no way of finding out except through someone who has used them before. Electricity has always found a way to confuse the shit out of me.Quote:
Originally Posted by warrior #113
I've even been zapped a few times by 30 Amps! Only because the guy who was supposed to be the teacher running the glass blowing class would not spend any money on getting new parts for broken equipment. My blow pipe would hit the elements in the annealer because they stuck so far out into the heating chamber. That place was a joke.
1.5A. is Imax
I run mine at ~1.1A. and about 10.8V. at full output.
Aloha,
Weeze
im currently using 400w hps dual spectrum. it works awesome but wondered what wattage for led say a blackstar is recommended for 2 plants?
About 200Watts of decent leds will replace a 400W HPS
Hello Mate,Quote:
Originally Posted by Weezard
Could you expand on the two above points please? Thanks.d
I suppose.
Been trying to grow Gainesville green indoors.
Was having no luck. Seems like she hated CFLs and LEDs.
Did grow a bit under HPS so I had a think.
Attachment 289575
It's a clue.
Mo' red, less blue.
Woohoo!
Had her under a 7:3 veg panel
She perked right up when i put her under my 4:1 bloom panel.
When the sun hits the atmosphere from an angle, more blue light gets scattered and the result is a red shift.
Plants that have adapted to that red shift seem to get confused by a blue shift.
Still futzing about with it and would appreciate any input.
Aloha,
Weezard
[quote=Weezard]
Mo' red, less blue.
Woohoo![QUOTE]
hmm makes sense. both of my lights seemed a lil slack on blue to red ratio.....that explains it tho. from what ive been reading photosynthesis uses red for one part of the process possibly for breaking things down and blue for the conversion. there was no conclusive info in what i was reading about that tho. i am a little disconcerted at how intolerant and less adaptable herb has become, compared to what was once as i remember it very tolerant and very adaptable. i have grown it in muddy, swampy, dry and dusty. my brother used toss seeds over into his back seat of his eldorado all the time. the rear window was a split window and leaked so that in heavy rain hed have a forest growing in that nasty moldy carpet. now it seems like its become some sort hothouse orchid. fussy, pissy about soil, ph, nutes.... i never used to use them except at the end. what has all this basement breeding done.....well ok i do like the funky strains.....but anyone breeding try to toss some the adaptability back in will ya?
Great info. Im doing my reading on LEDs and you've been a valuable resource.Quote:
Originally Posted by Weezard
A few thoughts..
Most of the classic sativas are based near the equator (Columbia, Thailand, Malawi are a few examples I can think of) where red shift would be at a relative minimum vs. a classic indica from Afghanistan where shallower sun angles would enhance the effect..
A quick googling of gainsville green says Thai x Hawaiian.. not sure if true, but interestingly, both locations are at the same latitude.
I'm ordering my LED lights from china, desided to get two Apollo20, my chinise supplyer recomends this combination: white/660nm/630nm/460nm/610nm/410nm=1:4:3:4:1:2. He said that he has hundreds of customers who sucsesfuly grow with this combination indoors. Dear Weezard, should I go with his suggestions? maybe you can recommend something better. Thanks
white/660nm/630nm/460nm/610nm/410nm=1 - 4 -3 - 4 - 1 - 2
Apollo LED grow lights are very great, it is produced at this company.Quote:
Originally Posted by unknown947
CIDLY LED Grow Lights
I do not endorse those lights.
They look halfway decent, but I'm not the guy to ask.
Had we found any retail offerings that were worth those inflated prices, we would not have bothered to build our own.
So, best of luck.
Come back and tell us how it plays out.
Aloha,
Weeze
those lights look scary. didnt bother to look at prices because they cant even get some of the basic spelling right.i know its china and english isnt their language of choice but even the chinese have spell check with english language packs. and i know even US manufacturers get their leds from china but we know how to wire them for our power reqs. they dont even know how to set it up for their own!