Mars-Hydro LED Grow Light Discussion

Trewalker said:
So who is preventing you from ordering the lights then ? Sara even sells in lots, so by several at a time and show folks how it is done, versus just typing on the forum.
I am not going to be a Goober for the Chinese myself.
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with all the T's I got confused
 
being a tester leads to spending plenty of money theres thousands of $$ in my setup, a free light could cost me alot of $ in the long run, some discounted nutes ended up costing me all sorts of $ for test equipment meters,filters,, and at one point a whole crop went hermie from issues with ballasts frying, lots of my time,and im obligated to the sponsor to record report document ,its alot of work to make sure when i recommend a tool that im not misleading anybody, i work hard for that "free" light, but its cool cuz im helping the cause and thats why im here, with love and respect in my heart for the community
 
BigIrishDoode said:
being a tester leads to spending plenty of money theres thousands of $$ in my setup, a free light could cost me alot of $ in the long run, some discounted nutes ended up costing me all sorts of $ for test equipment meters,filters,, and at one point a whole crop went hermie from issues with ballasts frying, lots of my time,and im obligated to the sponsor to record report document ,its alot of work to make sure when i recommend a tool that im not misleading anybody, i work hard for that "free" light, but its cool cuz im helping the cause and thats why im here, with love and respect in my heart for the community
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Rock on BID
:allgood:
 
Buckshot said:
If you actually wish help... post a journal.

I don't wish to promote lights that don't work either. I have no idea what is coming to me and I have not asked cause it doesn't matter. Whatever it is will work or it won't. I will honestly write about what happened.
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Why do I need to post a Journal to help Out?
 
I am late today, it was busy. here is afternoon, most of main work has been finished.

I am ok,do not worry to talk about others. I'd like to know more about others.then I will have more idea on how to make our new product.:high-five:
jon705 said:
My lights are they're last model,They have Helios diodes, the new ones are Cree, they were discontinued because they were to expensive to buy for alot of growers($1500) so they came up with the new design, they believe that more smaller lights are the way to go for max coverage and I agree with them, you can daisy chain 6 of those lights together and plug them all into one plug, we gotta stop talking about them here on Sara's thread though bro, Sorry Sara:)
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Thank you BID. the light we prepare for you still at customs. so we need to wait two more days.
BigIrishDoode said:
being a tester leads to spending plenty of money theres thousands of $$ in my setup, a free light could cost me alot of $ in the long run, some discounted nutes ended up costing me all sorts of $ for test equipment meters,filters,, and at one point a whole crop went hermie from issues with ballasts frying, lots of my time,and im obligated to the sponsor to record report document ,its alot of work to make sure when i recommend a tool that im not misleading anybody, i work hard for that "free" light, but its cool cuz im helping the cause and thats why im here, with love and respect in my heart for the community
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Dear Trewalker, I am sorry that you did not grow well. actually I have applied to refund your money. but there is a problem. some customers grow several times, then they grow well. the same spectrum, some people grow well, some grow bad. so we do not know it caused by the spectrums or grow method. we are trying our best to find the better one. just need more time. why we be a sponsor here? because we sell hot on ebay, we have high score there. if our product is really bad, why the clients order from us? I am confused. but I'd like to know the truth all the time.

Trewalker said:
I am not, nor never was a tester. I payed hard earned cash for a light that was suppose to grow plants, any plants.
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Thank you Jon, work together to make a better light.

yes, if you want to find LED light, please find the company located in shenzhen, Guangdong,China. LED industry Chain is located here. you can find all the parts you want here. low price, high quality. everything is very convenient. but there is a city sell very cheap led commercial light in China. it is zhongshan, guangdong,China. LED grow light,you'd better order from factory if you want to order from China. Trading company can not give you good product if your price is not good enough.

I am in China, so I am more familiar with here, if you(all my friends) want to know more about here, I'd like to tell you more. then it is easier for your to know how to find the right product here in China. the main problem is most factory only do wholesale business. no retail. and they have agent all over the world.
jon705 said:
Well said BID, these lights might not be were they need to be yet but it appears Sara wants to get them there, giving a few away for free to experienced growers to test out is a good way to do that, you cant get any better advice than from the feedback from people that use them. Reps to you Sara for what you are doing here, im sure we will all figure it out by working together:)

PS: btw Trewalker, my lights are designed in the states but they are made in China, 95% of all led panels are made in China and 95% of all led diodes are also made in China.The reason for this is its ALOT cheaper to hire a factory in China to build your lights to your specs than it is to buy a factory and pay your own employees to build them.Small companies cannot compete with the factories because they dont have the money to buy the parts in large quantities so they cant compete with the prices.Its like comparing a mom and pop hardware store to Home Depot.Just about all the diodes and other parts are already in China.Theres alot of led companies that claim they're lights are 100% american made or wherever else,most of them are flatout lying.
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Greetings Sara

i took this from the Area 51 forum

here is their take on LEDs and spectrums

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"I'm sure many of you have seen many 1-2 red and 1-2 blue 90w UFO's compared to 400w HPS grow lights.

How did they come up with these numbers?

It's simple, per the popular belief, and misconception, "plants only absorb blue and red, everything else is wasted". If you look at the PAR of a typical 90w UFO with 440nm, 460nm, 630nm, and 660nm, you're looking at roughly 300 Umol'/s at 12", or less.

If you took a 400w HPS and removed everything besides the same spectrums as the UFO, you'd have roughly 100 Umol'/s.

But if it were true that plants only used red and blue, why doesn't a 90w UFO even compete with a 150w HPS? It's because there's more to spectrum than just red and blue, plants absorb everything in the visible spectrum and somewhat beyond, though the absorption rates are different from color to color. We believe (most) plants will prefer a spectrum and intensity similar to this:

400-440nm 15 Umol'/s
440-480nm 65 Umol'/s
480-520nm 65 Umol'/s
520-560nm 160 Umol'/s
560-600nm 160 Umol'/s
600-640nm 240 Umol'/s
640-680nm 65 Umol'/s
680-720nm 15 Umol'/s
720-760nm 15 Umol'/s

The spectrum and intensity levels should stay the same except for lesser red and yellow in veg. Basically, you'll have 800 Umol'/s during flowering, and 500 Umol'/s in veg.

Plants have been growing under a full spectrum Sun for millions of years. And they've been growing indoors for decades under full spectrum fluoros and HPS/MH lamps. Full spectrum is what they're used to.

And since we started building our LED Grow Lights with the primary color as white, plants have been growing faster, happier, and bigger.

Even though plants prefer a full white spectrum with the red 600-640nm favored, they can and will strive under other colors as well, or lack thereof. They'll just do better with the white."
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Sara could you please post the spectrum's and Umol'/s at a their recommended distance from the canopy, total Umol'/s for each test light at recommended distance and light penetration as well that your vegetative and flowering lights use that will be sent out for the test grow journals.

have a good day
 
kj is piqued my interest in the specs with that post it males sense ive wondered how cfls can grow such decent plants and mh/hps even better, when led co. claim white is a waste,i think "white is a mix" that explains it well, im reading ed r's book he sez what matters is basically raw power strong lights put out more , this is why for decades hid has been the boss, led needs to look at what makes the hids work and more or less match or beat it, to win over the growers just my thoughts
 
jon705 said:
Yup, that guys name is Jeff and like I said he really knows his stuff,I ve been on the phone with him many times getting pointers on the differences of growing with led, he helped me out alot when I made the switch. They are all growers at Area 51,that was one of the reasons I went with them, because they design they're lights with one plant in mind:)
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This topic seems to be a controversial one. I've been shopping around, doing the research and finally decided to ask some questions directly at the source. So I asked Richard (plantphotonics) what he thought about white diodes. I thought his company didnt use them, but he replied this:

2) My lights have warm white (3000K) leds already and always have done. Plants seem to do a bit better with the extra whites, but if you use too many yields drop as too much of the light is out of the main photosynthetic peaks. You are just back to using white light, but with leds not HID or fluorescents! The whole idea of leds was concentrate your light in the regions of the spectrum the plant can use most efficiently. There was an early led light called the LightBlaze 400 (or something like that) that was similar to the area 51 lights, white and a bit of red. It was better than the UFO garbage that was around, but didnt do well against reasonable quality red/blue lights. so a few whites is good, lots wastes power!
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His lights are considered either state-of-the-art or at least top3. So his opinion counts. I wish I was smart enough to understand all the jargon haha.




And a question to Sara:
Correct me if I'm wrong but in this topic you have claimed to use best Cree diodes. That must have been right at the beginning of this thread, and since then it hasn't been discussed. I'm wondering...
 
Sara uses Epistar diodes michalciesla, area 51 uses Cree diodes now, my lights have Helios diodes. I did a test on my last round, 4 600w led covering a 8 x 8 area against 2 1000w hps hortilux superplumens(brand new bulbs) so 2400w of led covering a 8 x 8 area vs 2000w of hps covering a 4 x 8 area, all in the same room so the enviroment was identical. I took the 3 best plants from directly under the hps and the same from under the led's(same strain one mother). The hps won the contest by 3 oz but the led's cover double the area so imho the led's won.My lights look alot different than most led's when they are lit up because of all the white in them, my room isnt anywhere near as red and blue as rooms lit with other brands but I think I proved that they are direct replacements for 1000w hps.Also, the led nugs were easily twice as dense and had twice the trychrome production, they are designed by marijuana growers for marijuana growers.I dont understand alot of the tecnical stuff either but I do understand the results that I saw with my own eyes and I think Jeff is right about the white spectrums:)
 
I introduced a light to "the room" that had white and more blue... more of a veg panel really. The girls loved it and even stretched toward it...but... in the end the other lights had twice, twice the bud size.
 
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