Every time I type LED into the search function, it comes back empty. However, I know there are LED threds here and that there are people here with LED experience. I need all the LED info I can get ESPECIALLY pics. Someone I know is doing an LED grow (not me) and I think they are using too few and too cheap panels. Already their plants are yellow. Please help!

Peace,
InAJar

I used 4 flood style High Output LED Clusters I found on ebay. They really perked my plants up and I figured this was because I was using a 600 HPS so they liked the extra blue light. I also used the leds to bring up my seedlings on my second strain and it worked like a charm! Super cool, super efficient, super focused wavelengths! A definite must for people who use HPS all the way through!

P.S. I stopped using them when I started flowering because they were all blue but I saw the same lights from the same store in all red and half blue/half red!

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I am a dreamer and I lie for fun.

how do led light work im still a lil bit lost on these

I figure an LED UFO in a ScrOG would more than pay for itself in a grow, if it can cover 9 sq. ft. as described here: -HID-LED-UFO

I figured this by this equation:
9 X 2 ounces of good shit X $150 per wholesale ounce = $2700 - $600 per LED

Does that sound a bit right?

It also seems LED's would kill in a greenhouse, used to cover 10 sq. ft. for supplemental lighting.

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Both my father and my self are legal users of medical marijuana, and support its legalization for all uses. To Canada & BEYOND!

Woah, that was way off. I am highhhhH! 3 X 3 is 3 sq. feet.. meaning only $900 GROSS... so it does sort of pay for itself but it's like you were delayed for one harvest cycle, hmm.... I'm wondering if this would be worth my investment.

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Both my father and my self are legal users of medical marijuana, and support its legalization for all uses. To Canada & BEYOND!

I'm doing an experimental grow right now with ONLY LED's. You should check out my thread.

Full LED grow room/aeroponic system. first attemp

nice journal! I apreciate all this LED info, keep it coming! I think it is the way of the future.

Once they figure out an affordable manufacturing procedure, which will probably take several years.

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Both my father and my self are legal users of medical marijuana, and support its legalization for all uses. To Canada & BEYOND!

I'm just curious...what was your female to male ratio? Given everything I've been reading states blue light during early veg increases your number of female plants.

And...yes, I'm a newbie setting up my first grow tent. This will help answer my questions re: buying blue LEDs on eBay!

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Blue in veg is simply good for vegetative growth. I can't definitively say that's not true, though, because less stress causes more females, and more efficient veg lighting would cause there to be less stress.

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Both my father and my self are legal users of medical marijuana, and support its legalization for all uses. To Canada & BEYOND!