L.E.D. grow lights?

4

40acres

New Member
ledgrow said:
2 1/2 weeks

Thats proof of an idiot who doesnt know how to correctly measure a light. If you guys on this board honestly think that 1 lumen + 1 lumen != 2 lumens you are headed nowhere fast.


1. yep, 600
2. not dankest is a far cry from "Anybody who thinks LEDs will grow dope is a fool"
3. Wrong. Nasa uses LEDs because they are energy efficient. Hard to break and easy to fix lol? You have no idea wtf you are talking about you just made that shit up.
4. If they were really good everyone would have them? Really? Considering that actual performing LED grow lights have only started to emerge within the last 6 months to a year? And with the type of ignorance spread on this forum i highly doubt it.
5. Yeah, and I probably wont post much more because I sure as hell would not take growing advice from what ive seen so far in this thread.


Yeah with a 200% increase in power and heat along with costs of bulb replacements and ballasts.


the UFO was the *first* viable led grow light that actually worked. its still not that good... better lights are the lightblaze 400, procyon, and ti-smartlamp that are actually viable for full grow operations.

LED growing is just now barely becoming a real grow option. instead of fighting it with total ignorance "they dont have lumens waaahh they r a scam!!!!" do some real research first. Or dont.
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i would keep believing it is everybody else and not you.check out this thread ledgrower. You will love it, it is about really good grows and you have a picture entered into it.Check out what people say about it.
https://www.rollitup.org/general-marijuana-growing/66692-internets-worst-marijuana-grows-2.html
 
ganjagoddess

ganjagoddess

Well-Known Member
SURE LEDS ARE GOOD if you wanna spend $600 for a light thats about as good as a 250wattMH and need one for each 1 foot plant.

He was trying to insult AlB Fuct, dude You have to be kidding me.

LEDS need more time to even become close to viable.

You are better off using Incadesents IMO at this point in time.
 
nickfury510

nickfury510

Well-Known Member
the guy is obviously an led salesman.....and he is a bad one at that......leds are nothing more than overpriced christmas lights.......
 
ganjagoddess

ganjagoddess

Well-Known Member
nickfury510 said:
the guy is obviously an led salesman.....and he is a bad one at that......leds are nothing more than overpriced christmas lights.......
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LEDGROW is not a saleman, I have seen him at uk420.com, he is actually quite popular there.

He is just a strong believer in LEDS as the future of Growing.

And he may be right one day, But TODAY is not the day.
 
blueberrysmoker

blueberrysmoker

Well-Known Member
After reading this thread im wandering if i should wait to buy leds till there is more people growing with them. theres nothing wrong with trying something new but for now i think i will use the tried and true methods for now.
 
ganjagoddess

ganjagoddess

Well-Known Member
You know if you read Led's posts he contridicts himself about the adding of lumens.

First he says it is possible then he says its not, then says it is.

Too bad, ignorance spreads like wildfire.

Blueberry, LEDS will never be able to mimic appropiate lights for growing.

The best single LED puts out 140 lumens, the worst single CFL puts out 1700 lumens.

And Lumens dont add so they will never be effective.
 
ganjagoddess

ganjagoddess

Well-Known Member
My opinion lies in the fact that a LED will never put out any where close 1000 lumens.

Even If they did, my opinon of CFLs is that they are retarded, so in theory No the wont.

Were Trying to Replicate the SUN here!!!! How do you plan to say that a Million LEDS or CFLs will ever do so, when a 1000 watt light cannot even come close to the intesity and overall ability of the sun...
 
L

ledgrow

Active Member
Either you people don't know how to read, or your reading comprehension is so low you just cant grasp anything I said and instead continue repeating the same shit mindlessly instead of being able to respond to the comments.

Let me try again, maybe somebody somewhere will understand.

LUMENS DO NOT MATTER WHEN MEASURING GROW LIGHTS

LUMENS DO NOT MATTER WHEN MEASURING GROW LIGHTS

LUMENS DO NOT MATTER WHEN MEASURING GROW LIGHTS

LUMENS DO NOT MATTER WHEN MEASURING GROW LIGHTS

 If you dont believe me then fucking GOOGLE IT. You are using a measurement that is WEIGHTED for the yellow-spectrum which happens to be the least efficient for plants. Lumens mean NOTHING to plants.

This site does a very good job explaining it: Light and Plants

Second, you guys look at this picture and nobody sees anything wrong?


The following are reasons why this picture is complete crap:

1. You are pointing 2 lights directly into each other's reflectors and then taking a brightness measurement from the side.... ?!?!
2. One light bulb is covering the light output from the other
3. You are trying to take an accurate measurement from 50 millimeters away from the bulb.

Here is a diagram of the correct way to measure lumen output:
Common Light Measurement Terms

Try measuring it properly by pointing both lights directly at the sensor from 1 foot away, and then come back with your "empirical evidence"

This forum is proof of what can happen when people who dont know how to follow the scientific method try and do experiments.
 
V

Valron

Well-Known Member
you just handed the L E D grow a new weapon, some truth. soooo baked....:joint::joint:

ledgrow said:
Look man, I don't know who you are or where you get your information (its certainly not based on science), but I just couldn't take the complete inaccuracy of your post so I decided to make an account so I could respond.



You need to calm down man. I don't know if you just had a bad experience with led growing or what but saying "absolute crap" and "bullshit" just proves you dont know what your talking about. Furthermore, it should be illegal for you to post all that completely bogus information and pretend like its truth.

Again, you have no clue what you're talking about. There is a very good reason why led grow lights dont have a lumens rating - its because lumens is a measurement based around YELLOW-WAVELENGTH light. Did you even read the FAQ on that superled page? Or maybe try wikipedia:
Lumen (unit) - Wikipedia, the free encyclopedia

You cant measure an led grow light in lumens because led grow lights are tailored to the wavelengths plants are most sensitive to. An led grow light could have a MUCH LOWER lumens rating than another light but grow infinitely BETTER. Obviously LED lights will have lower "lumen" ratings, but using lumens as a measurement for growing purposes is completely worthless!

Look at this chart of plant Chlorophyll absorption:
Image:Chlorophyll ab spectra.png - Wikipedia, the free encyclopedia

Now look at the graph of the lumen unit measurement:
Luminous flux - Wikipedia, the free encyclopedia

"The luminous flux accounts for the sensitivity of the eye by weighting the power at each wavelength with the luminosity function, which represents the eye's response to different wavelengths." In other words, lumens are good in measuring light for humans but completely irrelevant in measuring light for plants.
Make any sense?uhhh, where in gods name did you get such a patently WRONG idea and become so certain it was true?
I hate to have to explain such a common-sense concept... but adding two 15 lumen lights together pointed in the same direction IS roughly equivalent to a 30 lumen light.

Eh? What in the hell are you talking about man? This is completely wrong.
Try staring at a flashlight for a few seconds. Now get 5 of the same flashlights, tie them real close together and stare into them. Do your eyes hurt more? Well they shouldnt! Light output shouldn't be any different from one flashlight! Right?!?:dunce:

Its a simple concept. Light = energy. More sources of light = more energy.If you have ever measured light you would know this is just simply not true. Adding more leds WILL increase the overall lumen output. (Ignoring the fact that using lumens to measure growlights is just stupid to begin with.)Ahh yes the moment of truth. Anybody who thinks they will grow dope is a FOOL, you say? You should really watch what you say at the cost of looking very very stupid.

The following pictures are of the Lowryder2 strand grown from seeds using an ebb & flow system w/ canna nutrients on a 16hr light cycle all the way through. This was done using only the LightBlaze 400 which happens to be the light you are bashing in this thread.

Shes a baby->


Getting bigger, looking healthy->


Yep, 100% LED grown. VERY happy with the lightblaze 400 from LED Grow Lights - Plant Grow Lights ->


And heres a closeup ->

So what were you saying there about being a fool?Stop acting like you are so sure of yourself. I had no troubles growing my MJ plant and people who see it are so thrilled they have been convinced to buy an LED unit themselves. There are certainly a lot of crappy led grow lights which are scams, but that doesn't mean the entire technology is flawed!

 NASA is successfully using leds to grow plants in space (try googling it), maybe you could enlighten them with what you know and convince them they are wrong.:razz:Unless you want to come back and tell me my pictures are photoshopped, i suggest you stop touting your incorrect assumptions.
You can talk shit on LEDs all you want, but my results are not isolated. There are others having just as much success as me and eventually you are going to look more stupid than you do already. peace. :joint:
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P

passtheblunt

Active Member
HAHA i just have to laugh at this...

im sorry Al. B fuct

but you just got royally pawned by ledgrow

aw that made my day reading that lol

just loved the way he took your arguement apart bit by bit :D top notch ledgrow :D

sorry, had to be said :D
 
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ganjagoddess

ganjagoddess

Well-Known Member
Par is for plants Lumens are for people. TRUE buddy but

BUT WHAT LEDGROW ISNT POINTING OUT HERE is that if you do the math on the INTENSIY of usable spectrum in a HPS light Versus the 100% amount of usable light INTENSITY FROM LEDS.

HPS STILL WINS ALOMST 3 fold against the best Single LEDS.

The HPS can just create more INTENSE usable spectrum than LEDS can even though only such a small amount of the light produced is usable from the HPS!!!!

Your right buddy not lumens, but when you try to explain to NEWBIES about WHY NOT TO BUY LEDS they need something simple to grasp so they dont fall for your bullshit PROPAGANDA.

I have done the math and NO LED can replicate the INTENSITY OF light output than a HPS CAN!!!!

HPS CREATES MORE INTENSE 610-720nm BAND OF LIGHT.

LEDS ARENT INTENSE ENOUGH!!!
 
chuckbane

chuckbane

New Member
HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS HPS
 
ganjagoddess

ganjagoddess

Well-Known Member
Lumens actually can measure the intensity of a light, for example if a 1000watt HPS puts out 150,000Lumens, but the 610 - 720 nm spectrum is only X percent of the total light output you can calculate just the Lumens of the RED BAND and BLUE BAND of light.

It is until LEDS can reach this that they are to nixed as a idea for growing.
 
chuckbane

chuckbane

New Member
i have NEVER heard anything good about led... unless it is from ppl who have spent a good coin on a led op... but they are just trying to justify what they do,, dont get trapped into their b.s.
DONT BUY LED... BUY HPS
 
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