125 watt LED grow

[Bermyboy]

Gopher?

 

[Sportster]

WOW...where did Gopher go?? I thought for sure he'd be posting info by now???!!!?

We're still buildin' ours!!!

 

[hydrorascal]

gopher ?? ohh where ohh where is gopher ????

 

[Chamez]

God damnit, I just went through 10 pages and he doesnt tell you the name or the cost

 

[gramsci.antonio]

Blue is only 20% as efficient as Red for the plant in photosynthesis. I read that in a paper somewhere.

it was bullshit. Blue is MORE efficent than red.

 

[gladysvjubb]

Go to ebay. Type in "LED lights". You'll see various sellers of the new products designed for indoor plant growth at a fraction of the operating costs of a 400-600 W HID.

 

[gladysvjubb]

The LED array on ebay

The LED array on ebay

 

[blackone]

it was bullshit. Blue is MORE efficent than red.

Don't forget that blue photons are also higher energy and therefore require more power.
The most effective light for photosynthesis based on energy is red.

 

[nlvigour]

100W LED Grow Light

100W LED Grow Light

I too am looking for more information regarding the aforementioned LED's. To date the Procyon 100 seems to be the most efficient light. The following are the specs advertised on www.homegrownlights.com website. The description sounds earily similar to what "gopher" hinted at.

56 CREE* Xlamp high power LEDs (40 635nm, 16 470nm)
• 100W nominal LED power delivery
• 125W total power consumption• Integrated power supply; requires no “ballast”
• Replaces 400W HID light, giving 75% power savings
• Covers approximately 10 square feet
• 50,000+ hour LED life
• Proudly Made in the USA!

Measures 13.5" x 5" x 5", weighs 7lbs. MSRP is $599.00



http://www.homegrownlights.com/100W.html

In addition, there are tests currently being conducted on the Procyon 100 though they are "not plant specific." Nevertheless, I believe these tests are are a great starting point to eveluate the latest in technological innovations that have potential to be adopted by the horticultural community.

You can find the testing being done at the following link.

http://www.greenpinelane.com/default.aspx

Along with many others I too am looking forward to seeing the birth of a genuine horticultural LED Lighting Fixture.

Best of luck to everyone and happy new year.

Kind Regards

 

[gramsci.antonio]

Don't forget that blue photons are also higher energy and therefore require more power.
The most effective light for photosynthesis based on energy is red.

Again that's not true.

Blue photons require more energy to be created, but also holds more energy.


No waste in quantum physics.

 

[nlvigour]

125 Watt LED Grow

125 Watt LED Grow

I should have included pics of the fixture.





Here is another pic with lights on...





I sure wish someone here would do an additional test grow with this fixture.b Hopefully, somoene with the resources will be able to step up to the plate.


Kind Regards

 

[hydrorascal]

"56 CREE* Xlamp high power LEDs (40 635nm, 16 470nm)"

look at the graphs above. 635nm is NOT a plant spectrum. Why buy something that isnt designed to grow plants ????

 

[Lumen]

Photosynthesis Rate is at 60% for 635nm. Look at the bottom diagram. Absorption is only a hint, active photosynthesis is more important. And you forget they emit at a center (635nm) and quite a bit above and beneath that. A value given by the developer is "spectrum half width" telling you where the LED still emits at 50% of it's maximum. It's around ±25-30nm of the 635nm. Those 50% at 660nm might be a lot more than a dedicated 660nm emits in the first place.

 

[Rabies]

Great , I had been looking for a report on led's before i dropped the buck$ on them.. This was thorough and complete. Good job

 

[donutsandwich]

damn this really sucks balls. I waded through this thread for no info on a vendor. Ive spent like 500 on shitty led lights and want to get a good light and now gopher dissapears and wont reveal the brand!!! damn!! oh wel.... cfls for now.

 

[Lumen]

You have info about the procyon 100 and hid hut ufo. Those are the most promising candidates for $600. Or the TI smartlamp for $1400 featuring 300W.
They all use eighter Cree or Luxeon LEDs. Don't go for 5mm LEDs.

 

[chrones]

here maybe this will help im still skeptical on leds but it might be way of the future skypedia.org/bright-idea.html

 

[hydrorascal]

I sure agree with ya on the amount of sq ft of coverage Knna.. On the spectral position you present there I disagree with you. ALL needed or plant desired spectrums are made by led mfg's. Granted finding those 'strange' spectrums with a respectable output is a true task but its doable.

The first 700nm I was quoted had a price tag of $1.50 ea with an output of 4mcd. The ones Im using are significantly less costly with over 50x the output.

There must be some reason why so many PHD type researchers have all come up with the same nm set that plants prefer. For myself, I vastly prefer to go with their nm set taking the effort to source those nm rated leds than attempting to band aid ones that 'might be close'.

or in other words... is 30% of 5K mcd better than 100% 5K mcd ?? Not from the math I was taught.

 

[Mrpiston38]

wow i think with all the petty bickering he doesnt want to post anymore on IC. I mean who really cares about what he is doing other then results. I think if you all back off and let the man create or help create these new lights we will all be in it for the better. sooooo...........

 

[WTF-over]

This is what matters

This is what matters

Here are the last 4 and a shot of all of them hanging to dry. Oh yeah, apparently I had a couple of my purples in there as well. I thought it was just Skush and NL . . .

This in the end is what matters in the grande scheme of things... not all the techno BS