burnbradburn
Member
Blackdog is really starting to step their game up. It's really nice to see. That 750 watt panel on the Growershouse channel looked awesome.
That's the panel I have. Definitely nothing to complain about so far.
Blackdog is really starting to step their game up. It's really nice to see. That 750 watt panel on the Growershouse channel looked awesome.
petflora,
you've got me looking at the home depot led bulbs every time i'm in the store now
I cant speak for all units but I do know the hydrogrow led's fan speed is directly related to the watts you are driving into them as the new penetrator extreme x2 models have a .5w 1w and 3w power setting and even without a killawatt you can hear the rps of the fans go up as the wattage increase to the diodes is applied. I did borrow my buddies killawatt and although I didnt take pics I can say the 336x pro draws 545w at 3w setting and the 189x pro draws 320w at the 3 w ratting. So a little math and I can tell you the 336x pro has 336 3w diodes running at approximatley 55% of full wattage same with the 189x.Lots of these units have thermostatically controlled fans, right? So in any given picture, the lamp could potentially pull more watts than is being shown.
Which just points to the difficulty of doing LED comparisons: watts used are not all even generating light.
I cant quote on all the spectra but I do know that although green has long been though to be useless I have recently read some info on 525nm green light , ill just paraphrase. The gist is once you plant is saturated with red 740 660 620, blue around 450 and 470 the green 525nm diodes will increase a plants ability to bind co2 to the stomata of the leves which will make co2 even more effective. Also while only 15% of 525nm green light is able to penetrate the cells , studies show that the green light photons spend 5 times longer in the cells, and i was actually informed by a few led growers to be prepeared for the extra stretchi will see with 525nm green in a co2 supplemented enviroment . One thing though is every talks about par which is as we all know photosynthetically active radiation, but the fact is leds should be desigend using the PUR scale which is Photosynthetically useable radiation. Pur being the actuall light radiation each species of plant uses most effectively. There is a journal going right now cant remember it name here but I do remember its led panel having a value of 7400$ as its spectrum is completely controllable by a computer interface. From what i saw of that unit it looks like the PAR output can be modified to match the PUR of any particular plantNeed some guidance here.
I'm thinking about having some 400w LED units made for me.
Basically they would look nearly identical to the Advanced LED units.
Stock out of the box they come with 180x3W 660nm Red & 20x3W 455 Blue.
However, I can customize.
UV 370-380nm & IR 730-740 cost $3 extra per led.
All other spectra are no extra charge.
Following is whats available:
Option of Spectra:
IR850/940nm
IR730-740m
red650-660nm
red620-630nm
orange 610-615nm
yellow 585-595nm
green 510-530nm
blue 460-470nm
blue450-460nm
blue 440-450nm
Voilet 420-430nm
Voilet400-410nm
UV 370-380nm
White 2700-20000K
So, if I wanted these for Bloom only, what would be a good mix for spectra? Using 200x 3w Epistar & Bridgelux (actually I know those are the red/blue brands of 660/455, not sure on the other spectra brands).
Unfortunately I lost the conversation I had but the actual draw seemed good. I kinda want to say it was about 1.9-2w per led avg, but not positive.
beam is 90 degree angle.
Any help in this would be awesome as I just dont quite understand this part and I tend to think those advertising 15 spectrums are probably f.o.s. and are just getting a lot of cheaper led to make up space, claiming how great all these spectrums are.
Thanks in advance for any guidance.
GrowBlu 120x3w Full Spectrum light:
253-258Watts (fan difference)
View Image
Sorry for the crappy image, it's actually a screenshot taken from a video I shot lol
I cant speak for all units but I do know the hydrogrow led's fan speed is directly related to the watts you are driving into them as the new penetrator extreme x2 models have a .5w 1w and 3w power setting and even without a killawatt you can hear the rps of the fans go up as the wattage increase to the diodes is applied. I did borrow my buddies killawatt and although I didnt take pics I can say the 336x pro draws 545w at 3w setting and the 189x pro draws 320w at the 3 w ratting. So a little math and I can tell you the 336x pro has 336 3w diodes running at approximatley 55% of full wattage same with the 189x.
[snip]
phaeton confirmed an HGL 336 Penetrator Pro @ 462 watts (lights, includes no fans)...
The lights, 5 each HGL 336X-PRO growlights, 500 watts at the plug, arrived yesterday.
[snip]
i have misured the killawatt and is 209w