Search results

Yes, it was a grow journal on the 420 mag site.

Back to the topic of this thread. Has anyone actually taken a Area51 light apart and verified that they are using Cree chips? I just witnessed an A51 light get rocked in a side by side with a TopLED (one of the cheapest Chinese panels) 3 watt reflector series.

I don't have to trash you anymore on your comments about Cree past what Guod did... but They only have 14 offices in 10 countries (including the US). Only 2 of those offices produce diodes, 2 are research facilities, and the rest are sales and distribution offices. I've been to the Santa Barbara...

Do you just talk out of your ass 100% when you post. Nearly every word of your post in this topic are full of BS. Sony is mostly Japanese made and Sharp is a Japanese company as well and closed most of it's US plants due to poor performance and unions and has moved the vast majority of their...

You're right, maybe I should have said between 5 and 24% green.... I consider .6 grams (at 24%) of biomass over 60 days to be very little. "Many previous studies indicate that even with blue light added to red LEDs, plant growth is still better under white light. Certainly to humans, plants...

Directly from the study you linked, one sentence below your quote above: "One possible solution is using a small amount of green light. To test this hypothesis, Kim et al. (2004a) grew lettuce plants under red and blue LEDs with and without 5% (6 μmol·m−2·s−1) green from LEDs with both...

You may want to re-read that... The suggested addition of green is to make it LOOK more appealing and white was to assist in the growers evaluation of plant growth and possible problems as well as a better overall sight... FYI that paper is from 2008 and using data from the 90's and very early...

I would love to get a source for this information. It contradicts everything I have ever learned and may lead you down a narrow path.

I believe he is referring to the GLR gas lantern routine. 12 hours of light 5.5 hours of dark one hour of light then 5.5 hours of dark again. I could be mistaken tho. Subbed

As the OP of the thread I linked stated, he culled his fish to have only those that where resistant to low PH and high Nitrates. I've controlled my nitrates with a combination of adding more green leafy vegetables and water changes. It is a small eco-system in and of itself. Once you get...

For everyone posting in this thread, you are worse than the people that said you couldn't grow indoors in the '70's and with LED's in the 2000's. A simple search of the forums will show you a .8 gpw grow in aquaponics and he tells on his issues and nute lockout due to too high nitrates...

What exactly is the source of that information? Mind providing a link please?

Did you even read the link you posted? It clearly states 3 times that the addition of blue light decreased internode length and thickened stems. Nearly everything you stated in post #10 is either wrong or has no scientific basis. Other than a few small photo-receptors (that have not been proven...

There are a few things to mention on this. First, the use of blue light in veg state is not because the plant prefers it or that blue light more efficient. The reverse is actually true. Blue light is used because it promotes shorter stalker plants and reduced internode length. We (for the most...

Here are a few of my favorites: http://www.controlledenvironments.org/Light1994Conf/Contents.htm http://plantphys.info/ http://pcp.oxfordjournals.org/ http://www.plantphysiol.org http://biology.mcgill.ca/Phytotron/LightWkshp1994/Contents.htm (these two are the best...

We get that from a number of you post such as: All that mmj needs is NW and WW that have 80+ CRI + high PPFD Found here: https://www.rollitup.org/led-other-lighting/633512-how-si-spectrum.html#post8816486 Over 5 years ago when I started testing with LEDs, my first thought was white...

SDS, I have been following the panel you and Guod have been developing. Very nice work and I can't wait to see the results of it. We all know that the current Astir panels are missing the deep and far reds. You corrected that in the panel you and Guod designed. My statement of putting those 2...

I read the entire thread as well. I seen Prof mention the same and Pet quoted a company website of the NASA study that even NASA rebukes now. SDS, we've had this discussion before. I'm not saying that green isn't need to some small extent and that the use of whites (cool or warm only) to fill...

Could you link to those studies? I hear this quite often but have yet to see anyone post a link to any article that states this other than: Green Light Drives Leaf Photosynthesis More Efficiently than Red Light in Strong White Light: Revisiting the Enigmatic Question of Why Leaves are Green...

Sorry I was under the impression that you was using the West Polyester resin and not the actual epoxy. (mix ratios change greatly and very on a number of things like cure time and temp). Adding a additional layer of copper under the thermal slug that is the thickness of the resin may take care...