Led Users Unite!

longranger said:

I will buy kessil when the price levels off, hopfully well under $200.

In the meantime I have experimented with generic chinese and blackstar LED panels. While I have great interest in the technology and efficiency purported by kessil I intuitively have to believe the better panels still give more bang for the buck, particularly with grows over a square meter in size. Other than that statement anything I surmise about kessil is just hypothetical until I run the them. What i will say is that the better panels of 200 W and above can produce superior buds, produce very little heat and are a viable alternative to HID for me.

The kessil advantage as outlined by their web presentations are seductive but slightly flawed. Regardless of the efficient use of electricity,specific spectra and optics the Kessils do not generate a huge vollume of photons.
On top of that the lens that allows penetration may cause burning if placed closer than 12 to 18" from the canopy. I look forward to the evolution of our light sources.

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surgedup said:

Hey guys I have a question I just bought this 300w chinese.... led panel off this guy on craigslist I know... he said it was a gro panel pro or tried to pawn it off as one from sunshine systems anyway I knew it wasnt one but I figure he paid at least 400 bucks for it since he sent me the info but not the price. I found the actual info and supplier he got it from this is the link to the exact same model I have except my model has a 8:1 red blue ratio.... I bought thinking at least it can veg and it does pretty well doing great ..... but for flower I know it wasnt gonna much good I have a 250w mh I veg my plants under but figure hey I save some money and electricty buy buyin this unit I at least got a deal since he paid 440 and I paid 200 let me know what you guys think about this light thanks lol ...... heres the link http://www.aliexpress.com/product-fm/324854260-300W-grow-fixture-Quad-Band-R-B-O-W-6-1-1-1-LED-grow-lamp-wholesalers.html at least its a quad band light ..... loll if that means anything .... the leds are probably 1w crappy leds though lol...

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surgedup said:

he said he only used it for 4 months .... just one grow this is my first time doing a led grow so what should i really expect how many plants can i throw under it ???

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surgedup said:

what brand name is your led light ?

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wizzy420 said:

What is your plant to light ratio? Looks like it would be tough getting two plants under one light during flower

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stoneyluv said:

i don't know.... some chinese kind i got from ebay.... it has the same spectrum info as yours does. that's why i think you will be fine. don't let my other message get ya down... i would have without a doubt paid the $220 like you did.

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wizzy420 said:

Is mylar or other reflective material as important with those Kessil lights since they seem to produce a narrow band of light ?

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surgedup said:

he said he only used it for 4 months .... just one grow this is my first time doing a led grow so what should i really expect how many plants can i throw under it ???

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surgedup said:

yeah its a quad band so its not so bad do you have the same light ratio .... red and blues

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Okie1983 said:

LED's work to grow very well the reason they get a bad wrap are all the companies out there selling crappy ones. If you see a LED grow light that is cheap it is a piece of crap. The key to a quality LED UFO is to make sure it has the proper light spectrum. Only buy from the companies that advertise the NM amount for each spectrum. This way you can insure that you get a quality product. I would put up a quality LED aganist all the rest any day of the week. The only thing they do that an LED won't is inflate you electric bill, produce excess heat, and scorch your plants.

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stoneyluv said:

yes, I have much more red than blue. but I guess the human eye cannot see red as far... when i crack the door open the blue spectrun goes across the floor and right up the wall. the red comes out of the doorway and ends a few inches out.... but there is alot more red color when shining on the plants..... just can't be seen as far. just don't get your plants to close... a good light will bleach and even burn the top of the plant from to much light intensity. I found out the hard way that i had gotten lucky by getting a good quality light for growing, i burned and bleached my buds by having it 4-5 inches away. i moved it up to 10-14 inches away. it's been there ever since.

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Viagro said:

You should read what the manufacturers say about different wavelengths. The theories have been put to the test. Concentrating on significantly beneficial bands makes for the best technology, the rest is wasted space.

I got this from an independent LED light builder in England, the guy knows his stuff:

You need 5 different leds to get plant growth equal to a standard metal halide/HPS light. As well a standard red and blue (640 Nm and 460 Nm) you need 660 Nm red to promote flowering, 430 Nm blue for the hard resinous buds (without it you get 'fluffy' buds with no weight) and warm white which provides far red out to about 800 Nm, again for flowering.

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