led height?

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dizzyFlores

Member
I am in the process of converting to a complete led based system, 4x4, eventually 4x8, and also am about to start some new genetics from seed. I am going to use a 180w ProSource ufo as the main flowering light and for right now, I'm using 45w panel for vegging. I plan on adding lights as the grow expands.

I'm asking all of you led enthusiasts out there for advice on light height during the seeding popping stage through 4 weeks or so. I've looked online and there area wide range of height, from 1" to 18".

Any advice would be appreciated.

DF
 
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iamgrowerman

Active Member
That's going to depend a lot on the kind of LEDs you get. They're far from being standardized.

It comes down to the same answer as any light source: as close as you can get them without the heat being a problem. Some LEDs run hotter than others so no one can give you an answer without a lot more info.
 
D

dizzyFlores

Member
iamgrowerman said:
That's going to depend a lot on the kind of LEDs you get. They're far from being standardized.

It comes down to the same answer as any light source: as close as you can get them without the heat being a problem. Some LEDs run hotter than others so no one can give you an answer without a lot more info.
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Understood. I've only ever used flouro tubes and 40w hps on seedlings. and I know how delicate things can be in the first few weeks. They haven't arrived yet so I don;t know how hot they're going to run as compared to my previous light set up, but the space does have air movement since I was using a 400w hps with ventilating hood during my last grow. Thanks for the reply.

DF
 
KaleoXxX

KaleoXxX

Well-Known Member
i dont think LEDs put off much heat, actually thats why there good for what there good for, and i doubt the penetration is very strong, id put the lights within a few inches of the plant
 
triconomics

triconomics

Active Member
I notice a very large difference with the LED lights with UV light added much nicer hard buds.

I wouldn't bother with anything now unless it has UV.

I get them as close as touching it doesn't matter just don't get it higher than probably 12-16 inches.
 
D

dizzyFlores

Member
triconomics said:
I notice a very large difference with the LED lights with UV light added much nicer hard buds.

I wouldn't bother with anything now unless it has UV.

I get them as close as touching it doesn't matter just don't get it higher than probably 12-16 inches.
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Hi Tricomics,

Would you suggest using cfl bulbs to add UV?

DF
 
triconomics

triconomics

Active Member
dizzyFlores said:
Hi Tricomics,

Would you suggest using cfl bulbs to add UV?

DF
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I am not sure I don't use CFL as I really don't have any margin for any heat.....I have heard though that that is the best way using cfl with led. Could be the reason but I haven't looked into the light spectrum of cfl.

http://growitled.com/

That is where I get the UV led's.

I think there is a canadian company that I looked into that has a LED light with UV. But it is a 300 watt system and like $1500. The Chinese version is the same CREE led's or else I wouldn't buy them.
 
D

dizzyFlores

Member
So my new ProSource 180w UFO arrived today and I switched out the 600w HPS on a flowering toxic lemon "rescue." The poor little plant got all sorts of beat up in a friends small cabinet and i offered to help her live out her flowering cycle. I have new genetics on the way. I'm amazed at how cool this thing runs. i think I can safely put the canopy about 3 inches away safely. Amazing. Can;t waut till I'm running the panels when the seeds arrive. Thanks for all your help fellow gardeners! DF
 
triconomics

triconomics

Active Member
dizzyFlores said:
Hi Tricomics,

Would you suggest using cfl bulbs to add UV?

DF
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Hey sorry I actually meant to say IR as in Far Red 720 NM light not UV.

I was thinking Infrared but saying UV.....:|

Anyway the newer lights that they are making have lots of spectrums that all plants need to a certain degree.

My next light is gonna be that 350 watt 6 spectrum light it has UV, IR, ect....for $900
 
triconomics

triconomics

Active Member
Red (660 nm) and infrared (730 nm) (also known as IR or far red) light: Intensifying the total of IR in relation with 660 nm red makes plants , grow tall and thin. On the other hand if red is increased while IR diminished, plants , will be short but thick. Plant , reactions are not linear with the red/far red ratio and they can also vary in their response to red and far red light.
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That is a cut and past of what IR does.

You only need it in a small amount to keep plants stout and thicken up. That is what my purple bud is doing. Same genetics side by side but the tri-band orange ones stretched quit a bit so the tops get ahead of the rest of the plant which is a big no no for LED growing.

My Purple bud under the IR is nice stout and focusing on making nice hard buds.
 
U

unibomber

Member
triconomics said:
I am not sure I don't use CFL as I really don't have any margin for any heat.....I have heard though that that is the best way using cfl with led. Could be the reason but I haven't looked into the light spectrum of cfl.

http://growitled.com/

That is where I get the UV led's.

I think there is a canadian company that I looked into that has a LED light with UV. But it is a 300 watt system and like $1500. The Chinese version is the same CREE led's or else I wouldn't buy them.
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Your getting jipped. You shouldve got the Lumigrow 330W which is equivalent to a 600W hps. Its the Cadillac of LED systems.

They are what Im buying. They are sick! so sick.


http://www.lumigrow.com/Products.html
 
triconomics

triconomics

Active Member
unibomber said:
Your getting jipped. You shouldve got the Lumigrow 330W which is equivalent to a 600W hps. Its the Cadillac of LED systems.

They are what Im buying. They are sick! so sick.


http://www.lumigrow.com/Products.html
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Hey mate nice name btw.....:)

But no I didn't buy this light http://www.indooragriculture.com/index.php?main_page=product_info&cPath=1&products_id=39

I think the Lumigrow is a better product than the TI-Smartlamp but your also paying more so I guess your getting what you pay for.

Growitled.com is where I got my lights from. The first two 120 watt lights I got for $420 each. The 2 120 watt lights I got with IR were $340 each.

Scroll to the very bottom and the light on there 350 watts uses also the 3 watt led's which there isn't much difference between a 3 watt led and a 5 watt led. The next level in LED's is the 10 watt light. It is only $900 with free shipping, the lumigrow is $1600 and the TI-Smartlamp is $1400 plus shipping.
 
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