4 led panels

[matking1989]

Amazon.com: ALL BLUE LED Grow Light Panel 225 LED 110 Volt,2501BU: Patio, Lawn & Garden
Hi i am doing my first grow i have a 30x30 area to work with in a basement i want to do an all led grow i know its not the best but i cant use anything else. anyways heres my idea i want to get 4 led panels 2 all blue for growing and then ill switch on the 2 all red led panels for flowering panels are 12x12 square this is more then what i need for this small space i will be growing white widow let me know what you guys think

matking1989 Reviewed by matking1989 on 02-06-2010. 4 led panels Amazon.com: ALL BLUE LED Grow Light Panel 225 LED 110 Volt,2501BU: Patio, Lawn & Garden Hi i am doing my first grow i have a 30x30 area to work with in a basement i want to do an all led grow i know its not the best but i cant use anything else. anyways heres my idea i want to get 4 led panels 2 all blue for growing and then ill switch on the 2 all red led panels for flowering panels are 12x12 square this is more then what i need for this small space i will be growing white widow let me know Rating: 5

[DreadedHermie]

Those things are what people call "China panels" and are pretty much responsible for the widespread (incorrect) belief that LED's won't grow anything. You *might* be able to keep a plant alive under those, but flower it? No way. You might use them for sidelighting because the plants can actually touch them, but they really don't put out enough energy to justify the tiny amount of heat they'll add.

Rather than spend 4 x $41 on these panels, I'd go with a UFO knockoff for around $180. A single high power led emitter will put out more energy than that entire panel. They're just junk, sorry about that...Shoplights from HoPo would probably work better. Or CFL's.

Just FYI, you won't get very good results using "single" wavelengths (all blue for veg, all red for flower.) A rough guideline might be 2:1 red-to-blue for veg, and 8:1 red-to-blue for flower. Plants need some red even during veg for to develop mass, and some blue during flower so the plant knows whether it's day or night, and which direction "up" is (clocking / phototropism) .

30" x 30" is a decent-sized grow space. I would run about 200 watts of high-quality leds in a flower space that size, minimum. (You can veg under lower intensity.) Should cost about $600. Good leds are expensive, but cheap ones are useless.

I'll send you a "friend request" so you can see my album. Got some pics of plants under *good* leds you can peep. HTH. Hermie

[matking1989]

thanks think i might just go with 2 ufos

[DreadedHermie]

That UFO design is being knocked off by different manufacturers all over China. Some work much better than others. Find a real person (not some undercover sales dick) who's had success with one (as in, successfully completed a grow) and get the same brand.

I would recommend 660nm reds over the more common 630nm (which is really a red-orange, IMO) if you have an option. 660's will give you buds as nice as HPS, if you know how to use them, and if you have enough of them.

[matking1989]

quad or tri band? how bad do they smell will someone walk down stairs and be like omg pot

[DreadedHermie]

quad or tri band?

Depends on what you are trying to grow. If you are growing buds on cannabis, 660nm red is what does it. Every led you add that is NOT 660nm is going to cost you bud in the long run. 4 band UFO's aren't better for flowering cannabis; they're less efficient.

I'd go with all 660nm reds, with just enough 465nm blue for clocking /phototropism. (8 reds to 1 blue or so. This is a fairly common UFO scheme, just don't let 'em palm off those old, unwanted 630's on you. :smokin You can add other wavelenths easily with a CFL or two, and/or other types of inexpensive lighting, if you feel you might be missing something.

More bands is not better. More 660nm IS better.

Just my .02, Hermie



And yes, most pot plants stink. The last strain I grew smelled worse in veg (like a dead body :wtf than in flower. A carbon filter/fan combo's the only thing that works for me.

You will need odor control. Folks won't need to come downstairs, they'll smell it at your front door. You'll need to take care of this within three weeks or so, unless you've got a real low-odor strain going.

[thepaan]

Just FYI, you won't get very good results using "single" wavelengths (all blue for veg, all red for flower.) A rough guideline might be 2:1 red-to-blue for veg, and 8:1 red-to-blue for flower. Plants need some red even during veg for to develop mass, and some blue during flower so the plant knows whether it's day or night, and which direction "up" is (clocking / phototropism).

You are spot on about the phototropism but I'm not sure about the flowering. By using a 2:1 ratio red to blue you are esentially starving the plant's primary pigments and forcing the carotenoids to work overmuch. This prevents it from flowering earlier but also restricts the carotenoids from performing their primary function which is photochemical quenching. Flowering is a phytochrome response which is controlled by day length and red (about 660 nm) to far red (about 730 nm) ratios of light. As cannibis is a facultative short day flowering plant it will eventually flower regardless of lighting conditions. It can be kept from flowering longer than it would otherwise naturally by a) lighting it for longer than 14 continuous hours a day or b) by interrupting the night about midway by 10 min of red light. It can be induced to flower earlier than it would otherwise naturally by a) lengthening the continuous night period to 14-16 hours or b) by adding at least as much far red light as you are using red light.

[Nik]

quad or tri band? how bad do they smell will someone walk down stairs and be like omg pot

:icon506:

[jtsik330]

Where are ya Stra8outtaweed???? Info is needed!!:thumbsup: He knows LED's

[stra8outtaWeed]

Where are ya Stra8outtaweed???? Info is needed!!:thumbsup: He knows LED's

thanks bro....these panels are a waste of time and money...you will be very dissatisied with performance!

DH hit the nail on the head as when people use these they will say LED's don't work!

these panels are equivalent to LED's like growing with an incandescant light bulb!:thumbsup: