Mars-Hydro LED Grow Light Discussion

Crawdaddy said:
Sara,

Curiosity question, what are the laws like in china for growing? I would bet they pretty harsh. Thinking about Jon's less then stellar results with the COB light, what if you all started your own test grows for testing out different spectrums?

And I would suspect it be pretty easy to add different spectrum diodes to the COB array of diodes, why not just use same ratio as other manufacturers or same ratio as your MARS lights?
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Hey Crawdaddy - as I understand it, hemp is extensively grown for the seeds and for fabric. And I also understand that hash is quite available there. Which means that somebody is growing somewhere. :-) However, trafficking is a very serious crime with many people still being executed if I am understanding things correctly.

But I have a different idea. Even if they could grow there, I really love the way that TopLED is working with the community of growers here. Having Jon705 and BID test the lights was pure genius on the company's part. Nothing like our own group of expert growers putting these lights through their paces to help all of us to understand their real power and capability.

So I'm kind of hoping that TopLED doesn't do any testing of their own but works with our growers here to test for them. It's a really big win all the way around.

I was incredibly impressed with Sara's very kind and humble response to Jon705's test. Jon's testing was nothing short of incredible. And BID knocked his test out of the park as well. What we are seeing, in my opinion, is a very serious company, working with very serious growers, to create the best product at the best price.

Now I would love to see some comparison testing done. Tests that would not only focus on the quantity produced, but also any qualitative differences. I would like to see a test done between TopLED and a competitors LED vs HPS. I would like to see adjustments made in the COB lights and then those tested again. It is an exciting time for this technology.

Much respect to Jon705, BID and Sara (TopLED).
 
the light is missing spectrums, I ran 4 timewreck under the COB and 3 more in my big room, all the same size all in supersoil,one plant in the big room is under one of my Area 51 panels and another is under a 1000w hps. During veg within 10 days the plants under my lights were twice the size of the ones under the COB, at that point the light was around 34 inches from the canopy, my panels were 4 feet from the canopy. all the plants under the COB turned out to be males so I took one of the 3 fems that were all pretty much identical in size and structure and put it under the COB to flower, the COB is now 16 inches from the canopy and again 11 days later the plant under the COB is half the size of the one under the hps and the one under my panels which are still 32 inches from the canopy. Red and Blue isnt enough spectrums, its that simple.
20135.JPG

The plant on the left is the one under the COB, 11 days ago these plants were all the same size.Same pot, same soil, same enviroment, different lights,the 2 under the hps and my big panels are still pretty much the same size.
DSCF5745.JPG
 
Jon705 if you were to design the spectrum's of the LEDs in a LED light panel used for vegetative and then a LED light panel used for flowering what spectrum's would you use and how many of each per array and what overall ratio would you use?
 
KingJohnC said:
Jon705 if you were to design the spectrum's of the LEDs in a LED light panel used for vegetative and then a LED light panel used for flowering what spectrum's would you use and how many of each per array and what overall ratio would you use?
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+++ Ha ha King - I was just going to write that very question, as it relates to a veg light.
 
KingJohnC said:
Jon705 if you were to design the spectrum's of the LEDs in a LED light panel used for vegetative and then a LED light panel used for flowering what spectrum's would you use and how many of each per array and what overall ratio would you use?
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Output said:
+++ Ha ha King - I was just going to write that very question, as it relates to a veg light.
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Honestly guys I dont have enough knowledge to answer that question, Im partial to my area 51 lights so I would probably go with something simillar to they're spectrums but depending on who you ask the spectrums can be very different, Hosebomber really knows his stuff but he doesnt agree with Area 51's spectrums, all I know is the Timewreck thats under my led panel is the same size as the one under the 1000w hps and both of those are twice the size of the Timewreck under the COB panel, theres definetly something missing, if all it took to grow good mmj was 2 spectrums them all the led companies would be using 2 spectrums right?
 
jon705 said:
the light is missing spectrums, I ran 4 timewreck under the COB and 3 more in my big room, all the same size all in supersoil,one plant in the big room is under one of my Area 51 panels and another is under a 1000w hps. During veg within 10 days the plants under my lights were twice the size of the ones under the COB, at that point the light was around 34 inches from the canopy, my panels were 4 feet from the canopy. all the plants under the COB turned out to be males so I took one of the 3 fems that were all pretty much identical in size and structure and put it under the COB to flower, the COB is now 16 inches from the canopy and again 11 days later the plant under the COB is half the size of the one under the hps and the one under my panels which are still 32 inches from the canopy. Red and Blue isnt enough spectrums, its that simple.
20135.JPG

The plant on the left is the one under the COB, 11 days ago these plants were all the same size.Same pot, same soil, same enviroment, different lights,the 2 under the hps and my big panels are still pretty much the same size.
DSCF5745.JPG
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I must be missing something here. You're comparing growth under a 1000w HID with growth under a 200w LED. I would attribute the difference to the power used rather than anything to do with spectrums used. You seem to be getting half the result with 1/5 the power.
 
The umols should be close to the same under either light, the bigger lights have a bigger core footprint, Im growing 1 small plant under the COB, the other 2 are in my big room stuffed in between the big girls, if the COB was a full spectrum light the growth should be the same.
This is my flower room
26142.JPG

see the 2 raised pots, those are the little Timewrecks.
DSCF56621.JPG

Half my plants are under 3 1000w hps the other half are under 4 600w led's, notice the canopy is pretty even, there should be no difference in growth rate with the smaller light, the only difference should be the amount of plants you can put under it.
 
jon705 said:
...there should be no difference in growth rate with the smaller light, the only difference should be the amount of plants you can put under it.
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I disagree with that. The bigger lamp is pumping out up to 5 times the light that the smaller one is (whatever the difference, I'm sure that it's significant), no matter how many plants you have under them. How are you figuring that the µmols are roughly the same from the two lights? I frankly don't know how to derive that info.
 
and its not a 5th its a third of the power, a third of the footprint and a third of plant surface, basically a smaller version of the same 3w light using COB tecnology, the diodes are the same, theres no point in having a light no matter what size that pumps out say 2000 umols at 36 inches from the canopy, you would have to mount it 8 feet away to get the desired 800 or so umols for flower.
 
jon705 said:
and its not a 5th its a third of the power, a third of the footprint and a third of plant surface, basically a smaller version of the same 3w light using COB tecnology, the diodes are the same, theres no point in having a light no matter what size that pumps out say 2000 umols at 36 inches from the canopy, you would have to mount it 8 feet away to get the desired 800 or so umols for flower.
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Makes sense to me bro...I'll go with the guy who has 3x notm wins...
 
jon705 said:
and its not a 5th its a third of the power, a third of the footprint and a third of plant surface, basically a smaller version of the same 3w light using COB tecnology, the diodes are the same, theres no point in having a light no matter what size that pumps out say 2000 umols at 36 inches from the canopy, you would have to mount it 8 feet away to get the desired 800 or so umols for flower.
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OK, that's the first I've heard that too much light is a waste. Whatever, dude... :rolleyes3 Good luck with the grow.
 
Bolivar said:
I would GUESS that it puts out photons at a much higher RATE than the smaller lamp.
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Bolivar said:
OK, that's the first I've heard that too much light is a waste. Whatever, dude... :rolleyes3 Good luck with the grow.
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Now see theres your problem, your guessing...you ever wonder why different led companies recomend different heights for they're panels:hmmmm:, its because some diodes are more powerful than others and they need to be hung higher to get that 800 umol's for flowering.Just about every led company clearly states why they should be hung at a certain height, to far away and the plants will stretch and to close there will be stunted growth and subpar yields.Acording to the first page of your journal you are a first time grower, You should do some research on growing with led's before you come into a led thread and start running your mouth when you clearly dont know wtf your talking about, I tried to explain it to you and in return I get sarcasm lol..you can keep the luck "dude" my plants and flowers speak for themselves...
 
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