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 phrostbyte
Hydro Grower
Registered: 09/15/11
Posts: 475
Last seen: 7 years, 3 months
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Quote:
HempMaster said:
Quote:
wire5 said:
Although I do have to say I would love to read a side by side comparison. LOL
I'd like that too with pics lol I'm currently exploring my options for my mom/vedge/clone area as i don't want to use HID's because of heat buildup. So i'll be watching this thread.
I use led for veg... got a 90w ufo and 8 plants under it right now. Things works awesome!
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HempMaster
Space Trucker
 
Registered: 04/08/11
Posts: 253
Loc: Canada 
Last seen: 10 years, 10 months
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Quote:
I use led for veg... got a 90w ufo and 8 plants under it right now. Things works awesome!
hows the growth rate compared to MH's??? for vedge that is...
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My Tombstone will read: IwasburiedfacedownsoucanallkissmyA$$
my current grow
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phrostbyte
Hydro Grower
Registered: 09/15/11
Posts: 475
Last seen: 7 years, 3 months
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Well to me it seems the same if not even a little better... the higher watt leds seem to work better. The light I have has 2Watt leds in it. My friend has one with the 1 w led lights and it doesn't work as good from the same distance.
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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Everywhere I post, most seem to be missing the point which is that most photons are wasted by missing the plant. A single young plant under a 600 watter will not do any better than my 3 watter because the photons are not landing on the leaves. This is why SCROG and SOG is so effective. Utilization!
I laugh when people ask how close the plant needs to be while forgetting that light has no problem travelling 13 billion light-years.
Tomorrow I will post an update though there is not much to see yet. It is not quite 11" by 11" inch now, but then I want to keep it small as I am not trying to grow a giant. This is a test of minimalization. I believe I can get the fabled 1 GPW by careful design even though GPW is a horrible metric for so many reasons.
I have switched to flower yesterday and updated to a 5 watter at 350 lumens. I could put all 18 watts on now, but as long as it is healthy and responding, I am not going to up the wattage. The plant will let me know when it is time.
One point of interest is something I have never witnessed before and perhaps someone could enlighten me on this phenomenon. The leaves are pointing upwards at almost a 45-55 degree angle. I have seen sagging leaves and healthy leaves breaking parallel by a little - maybe 10-20 degrees, but these little 'hands' are raised to Heaven. Most curious.
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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Quote:
phrostbyte said:
Well to me it seems the same if not even a little better... the higher watt leds seem to work better. The light I have has 2Watt leds in it. My friend has one with the 1 w led lights and it doesn't work as good from the same distance.
The luminous efficacy is not determined by the wattage of the LEDs. Lower power LEDs have greater heat dissipation and are able to be driven harder.
2 and 3 watt LEDs appear to be better ONLY because they are more current designs. Unlike all other lighting fields LEDS are changing month to month.
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HempMaster
Space Trucker
Registered: 04/08/11
Posts: 253
Loc: Canada
Last seen: 10 years, 10 months
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Quote:
OrgoneConclusion said:
One point of interest is something I have never witnessed before and perhaps someone could enlighten me on this phenomenon. The leaves are pointing upwards at almost a 45-55 degree angle. I have seen sagging leaves and healthy leaves breaking parallel by a little - maybe 10-20 degrees, but these little 'hands' are raised to Heaven. Most curious.
The only time i see this happen in my tent is if its too hot, above 29c usually. but if your using a 3w LED i doubt heat is an issue, unless its just really hot where u are.
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My Tombstone will read: IwasburiedfacedownsoucanallkissmyA$$
my current grow
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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No, heat is not an issue. I have run the same small setup successfully before with up to 26 watts of CFL in the desert in summertime.
I have seen leaves turn sideways due to heat though.
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phrostbyte
Hydro Grower
Registered: 09/15/11
Posts: 475
Last seen: 7 years, 3 months
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Quote:
OrgoneConclusion said:
Everywhere I post, most seem to be missing the point which is that most photons are wasted by missing the plant. A single young plant under a 600 watter will not do any better than my 3 watter because the photons are not landing on the leaves. This is why SCROG and SOG is so effective. Utilization!
I laugh when people ask how close the plant needs to be while forgetting that light has no problem travelling 13 billion light-years.
Tomorrow I will post an update though there is not much to see yet. It is not quite 11" by 11" inch now, but then I want to keep it small as I am not trying to grow a giant. This is a test of minimalization. I believe I can get the fabled 1 GPW by careful design even though GPW is a horrible metric for so many reasons.
I have switched to flower yesterday and updated to a 5 watter at 350 lumens. I could put all 18 watts on now, but as long as it is healthy and responding, I am not going to up the wattage. The plant will let me know when it is time.
One point of interest is something I have never witnessed before and perhaps someone could enlighten me on this phenomenon. The leaves are pointing upwards at almost a 45-55 degree angle. I have seen sagging leaves and healthy leaves breaking parallel by a little - maybe 10-20 degrees, but these little 'hands' are raised to Heaven. Most curious.
The only thing I have found from what I have red is that the higher watt LED have more light penetration the lower watt LED. Now in the same instance what your saying could also be true that they made a better way to disperse the light and just happened to use 2 or 3w LED.
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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Penetration is not a quality of the light source. This is stoner gibberish. There is no metric for such nor will you ever see that on a spec sheet. If one wants to talk intensity, there is already a clearly defined metric for such.
Penetration is a function of one's setup, if by penetration we mean getting light to the lower leaves. This is why in a week or two I am going to add 4 3w lights pointing downward at a 45 degree angle from all sides so that there are almost no shadows.
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phrostbyte
Hydro Grower
Registered: 09/15/11
Posts: 475
Last seen: 7 years, 3 months
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Quote:
OrgoneConclusion said:
if by penetration we mean getting light to the lower leaves.
I'm pretty sure this is what they mean when I read this. The higher watt LED get down farther through the leaves to the lower area on the plant.
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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Switched to flower and pumped the lighting up to 5W even though it was not necessary. In a few more weeks I will up the lighting to 9W. It is now 11.5" tall X 10" wide. Remember that I am trying to keep it small. This is a minimalist experiment. I have a separate grow for personal stash.
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phrostbyte
Hydro Grower
Registered: 09/15/11
Posts: 475
Last seen: 7 years, 3 months
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Quote:
OrgoneConclusion said:
Switched to flower and pumped the lighting up to 5W even though it was not necessary. In a few more weeks I will up the lighting to 9W. It is now 11.5" tall X 10" wide. Remember that I am trying to keep it small. This is a minimalist experiment. I have a separate grow for personal stash.
So are you using just 5 X 1 w leds? just white?
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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That's all, broseph, even though it was still responding well to the 3 watts. Take into account this is with low humidity, crappy soil and generic nutes.
Look at almost anyone else's photo grow log and you will see the majority of the photons being wasted. And then how do they compensate? By adding more light and heat and electricity and cost.
Fully utilize what you have, first!
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OrgoneConclusion
Stranger
Registered: 05/06/11
Posts: 93
Last seen: 6 years, 3 months
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Unfortuantely I have discontinued this portion of the experiment due to two reasons:
1. The plant turned out to be a male.
2. It grew too tall (but not stretchy) for my secondary area. He was 18" tall and 12" wide and still growing like crazy all on 6 watts total. I think this clearly demonstrates that almost everyone uses their lights inefficiently during vegging.
I have not given up though. I have a very short mature plant (12") a little more than half-way through flowering. I can post a photo if there is interest. I am switching her from the flower room to my LED test area. Going to see how she responds at 9 watts before adding more.
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