Treeth
Well-Known Member
It's too bad that the "perfect led light" thread that was over on cannabis.com is non existent anymore, as it was full of great information, and highly knowledgeable posters as well.
My heart goes out to SnS, Opie, others, and most of all the physicsnole, for collecting the information over on that thread which cultivated most of what I know now about this experimental led horticultural lighting frontier. And never you forget the pessimism of Al.B!
I think its now safe to say that the cheap ebay/alibaba 50 or 100 watt panels from shenzen are not what the posters here are looking for. We need high power leds, not the shitty 5 millimeter leds that are really just fine at putting out the color; however we here are looking for the lumens to drive fruit production.
There are led manufacturers making such leds, and at somewhat competitive prices per lumen. I am thinking of cree and phillips lumiled. My personal favorite design is the phillips rebel. I love these little guys. According to the products' white sheet http://www.philipslumileds.com/pdfs/DS56.pdf, and if my circuit math is correct, I'm putting out something like 27 lumens per watt with red rebels. I've found that around 80 watts of rebel reds a square foot is very doable, and worthy of flowering our favorite plant, which is perhaps endlessly hungry for more lumens.
Dees are primarily cost effective in small setups.
Small set ups are often very unprofessional and are often mismanaged, underfunded and/or poorly designed.
However, in something like Cruzer's cabinet, leds can shine.
Producing your own panels to do what I am talking about is difficult. It is much easier to invest in a 600w hid with the ventilation you need to do the job right anyways.
I do personally think that HIDs can be outdone by dees, however not solely. Dees of course must be supplemented by other sources of various other radiometric spectrums, namely from uvb cfls and far red heat lamps. But flowering driven by the power of dees is most definitely possible.
Most of the flower power of mercury vapor can be attributed to the special time after you turn the lamp off, as it slowly cools and continues to churn out the far red much like the setting sun and the warm earth at night. This is what causes the swelling buds.
It's something to do with the phytochromes... The fact that it does this, the far red, the 660nm reds and below, make them a geat value combination lamp. Led's allow the grower to be selective in his application of spectrums. For efficacious growers, it is a boon to the level of control, and amount of experiments that can be run. If you have you're set up dialed in, I'm primarily concerned about you right now, you having a good sense of conrtol over the variables which are encountered over those very special three months.
Anyways, I have been trying to get panels going for over a year now, investing much time and energy and all of my funds.
I would like now very much to build panels for this community, for growers ready to experiment. To take advantage of ways to put more power down, more creatively, for more hours, and more efficiency, in order to grow outstanding plants.
So I want testers.
My shit is much more purpose built than anything I've come across on the current market.
I'm primarily interested in flower panels only at first, as it is much more interesting because in separating the red out from the other spectrums, you can concentrate on it, cause' its the light the plants really care for. After all, you don't smoke the leaf!
My attitude right now is that veg is done most cheaply, and effectively, with cfls. It's the same during flower, except you don't use em' to flower with, and you're really not going for all that much veg... again you don't smoke the leaf.
Is anyone interested? You aint gettin shit for free... but you will be getting something that works and is more cost effective than anything i've yet to see using true high power leds.
More information to come with interest.
Thanks,
Peace,
and
Treeth.
My heart goes out to SnS, Opie, others, and most of all the physicsnole, for collecting the information over on that thread which cultivated most of what I know now about this experimental led horticultural lighting frontier. And never you forget the pessimism of Al.B!
I think its now safe to say that the cheap ebay/alibaba 50 or 100 watt panels from shenzen are not what the posters here are looking for. We need high power leds, not the shitty 5 millimeter leds that are really just fine at putting out the color; however we here are looking for the lumens to drive fruit production.
There are led manufacturers making such leds, and at somewhat competitive prices per lumen. I am thinking of cree and phillips lumiled. My personal favorite design is the phillips rebel. I love these little guys. According to the products' white sheet http://www.philipslumileds.com/pdfs/DS56.pdf, and if my circuit math is correct, I'm putting out something like 27 lumens per watt with red rebels. I've found that around 80 watts of rebel reds a square foot is very doable, and worthy of flowering our favorite plant, which is perhaps endlessly hungry for more lumens.
Dees are primarily cost effective in small setups.
Small set ups are often very unprofessional and are often mismanaged, underfunded and/or poorly designed.
However, in something like Cruzer's cabinet, leds can shine.
Producing your own panels to do what I am talking about is difficult. It is much easier to invest in a 600w hid with the ventilation you need to do the job right anyways.
I do personally think that HIDs can be outdone by dees, however not solely. Dees of course must be supplemented by other sources of various other radiometric spectrums, namely from uvb cfls and far red heat lamps. But flowering driven by the power of dees is most definitely possible.
Most of the flower power of mercury vapor can be attributed to the special time after you turn the lamp off, as it slowly cools and continues to churn out the far red much like the setting sun and the warm earth at night. This is what causes the swelling buds.
It's something to do with the phytochromes... The fact that it does this, the far red, the 660nm reds and below, make them a geat value combination lamp. Led's allow the grower to be selective in his application of spectrums. For efficacious growers, it is a boon to the level of control, and amount of experiments that can be run. If you have you're set up dialed in, I'm primarily concerned about you right now, you having a good sense of conrtol over the variables which are encountered over those very special three months.
Anyways, I have been trying to get panels going for over a year now, investing much time and energy and all of my funds.
I would like now very much to build panels for this community, for growers ready to experiment. To take advantage of ways to put more power down, more creatively, for more hours, and more efficiency, in order to grow outstanding plants.
So I want testers.
My shit is much more purpose built than anything I've come across on the current market.
I'm primarily interested in flower panels only at first, as it is much more interesting because in separating the red out from the other spectrums, you can concentrate on it, cause' its the light the plants really care for. After all, you don't smoke the leaf!
My attitude right now is that veg is done most cheaply, and effectively, with cfls. It's the same during flower, except you don't use em' to flower with, and you're really not going for all that much veg... again you don't smoke the leaf.
Is anyone interested? You aint gettin shit for free... but you will be getting something that works and is more cost effective than anything i've yet to see using true high power leds.
More information to come with interest.
Thanks,
Peace,
and
Treeth.
