Led Users Unite!

ClosetSafe

Active Member
I found the Lighthouse website. It looks similar to the gotham. http://www.lighthousehydro.com

Also have to thank you guys for sharing this with me. I would have never heard of them without you guys. And now I honestly have to buy one. I'm going to throw it up against my current LED in a side by side battle. Why not right?
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But Also I'm working on side project.
>Buying a 40w LEDengine($60), slapping it on a CPU heatsink($10), and wiring it to an LED driver($50)

I'm still planning it out, but I'm thinking of going with the Warm White.
(Link to the product data sheets: http://www.ledengin.com/ledengin_products-dataLZ.htm )
Warm White:
warmwhiteled.JPG

Coolwhite:
coolwhite.JPG

I want to use it as a supplemental between my future blackstar and current UFO.
What do you guys think? Sounds like an afternoon?

I'm looking for Ideas. Even want to know more about ordering a custom LED Panels.
 

ClosetSafe

Active Member
According to this graph, 12,000k would be far to the left of useful. Wouldn't it?

X axis is "nanometers", but yeah, I'm pretty sure 12,000k is way out of bounds. (Edit: I'm not trying to point out what you already know. Not trying to be a d.)

The gray line is apparently what a white LED will look like.rgbwhite.JPG

Not the same 12,000k. But I'm just trying to figure it all out too. 12,000k sounds ridiculous.

Edit2: I can't find a chart where it isn't cut off. I realized that the 740nm was still in par range, but the charts i kept looking at cut off at 700nm. Heres a quick google:
 

longranger

Active Member
Searching the net I could not find a 12000K 3W cree. They certainly have a 6000-12000K and I believe a 2800-5500K diode. Also could not find a 5000K. Maybe both of these Cree chips are emitting a rather broad spectrum of "white light" with a good PAR spikes. A true 120000K just does not make sense.
 

shovit

Active Member
Most common misconception with the ice cold LED, is to put it as close to the plant as possible. Doesn't work like that. The only light that the LED(made for growing) emits, is in the photosynthetic range. Putting it too close f's the s's.

Maybe someone can explain that better or maybe i'm wrong here in identifying your concern.
Even tho the light itself doesn't burn the plant the light itself it can be too intensive for the plant and evenutally bleach it out like a photo. A HPS will just burn the plant with IR rather than visible light.


audi024 you should watchout for hydrogrowleds... Overpriced units, and it's run by a maniac.
 

Viagro

Well-Known Member
Yeah, I just noticed I'd bleached white the tips of some leaves by letting my light go unmoved for an extra day. And it was still 8 or 10 inches away.

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Somewhere there's got to be a table for transposing wavelength to k temp.

edit: I found this

 

ClosetSafe

Active Member
Yeah, I just noticed I'd bleached white the tips of some leaves by letting my light go unmoved for an extra day. And it was still 8 or so inches away.

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Somewhere there's got to be a table for transposing wavelength to k temp.
As the greatest rapper of all time once said,

Dylan: [to Wyclef] You too close, mon!
[starts choking Wyclef]

If we can't find the table. We are now obligated to make one.
(I'll do it, if we can't find it, but later, now is time to go to work.)
 

BudBaby

Active Member
I was thinking about using an LED for vegging 4 plants. Can anyone with experience suggest a good light for this use? Ill be using HPS for flowering butlike the idea of LED's but not sure whats good and whats not.
 

Viagro

Well-Known Member
I was thinking about using an LED for vegging 4 plants. Can anyone with experience suggest a good light for this use? Ill be using HPS for flowering butlike the idea of LED's but not sure whats good and whats not.
Kessil has superior tech.
 

Viagro

Well-Known Member
That one is predominantly blue, for veg. The panels look ok, I haven't seen this co. before. The only thing I don't like is no mention of who's LEDs they use.

You live in the UK? Free delivery, but they only sell there.

If you are in the UK, consider this guy's light. It has a lot going for it.

If I were you, I'd contact him and discuss LEDs. He seems like a good guy to me.
 

BudBaby

Active Member
Thanks i have emailed him for some advice. I dont want to be buying the wrong thing.

I have heard good reports on LED's for vegging.
 

Viagro

Well-Known Member
Thanks i have emailed him for some advice. I dont want to be buying the wrong thing.

I have heard good reports on LED's for vegging.
You can grow some righteous bud with LEDs, as well. Look at Kessil.com, and read the new breed of LED page. Their little lights are amazing.
 

Viagro

Well-Known Member
Thanks again.

This will be my first grow so im gonna use HPS for flowering this time but im really liking the idea of LED's.

http://www.homehydro.co.uk/index.php/lighting/led-lighting.html

Would one of these on there own be enough to veg 4 plants? I will be using the SCROG method so i dont think they will have to get to big.
Yes but you can get it much cheaper. You can get it here for 249 dollars, not quid.

One purple or magenta will give you a good grow, start to finish. 4 plants might be a bit much in the bud stage, depends how big your scrog is.

Check out the buds from this grow.
 

BudBaby

Active Member
I would only be using this one for vegging this time and using HPS for flowering.

I cant get that link to work for some reason.
 

buddwasher

Active Member
i wanna go LED too - uses much less electric

i heard 120w LED puts out asmuch lummins as a 400w HID and they dont need a balast and they last like 10 yrs - i seen the 120w dual spectrum about £250

oh and no over heat probs


so yeah i am def interested - these are just what i read from the ads please comment because as we speak i am saving up for 3 of these suckers
 

kush groove

Active Member
According to this graph, 12,000k would be far to the left of useful. Wouldn't it?

In one of the kessil presentations i viewed on youtube, I remember the speaker saying that they also use off spectrums in small amounts to give the plant trace elements of light.
 
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