i say it again, there shit lol
i might be mr rollitup in drag............
gavatia will tell you there light is not a stand alone light for high demand plants. However check out the Heavy T grow show review on Black Dog LED. I use the light even more powerful than what they tested. episode 62 http://www.dufffreezone.com/past-sho...-jun-dec-2012/ i will try and find when they talk about it so you dont have to listen to 3 hours of talk. right now i would guess about min 25. also black dog has the link on their press page.
LEDs typically come with lenses over the diodes. Common lenses include 60 90 & 120. The smaller the number, the more concentrated the spectrum over a given area. You would not want to use 120 degree lenses to grow 4ft+ plants, but 120 would be terrific for short plants/scrog. Also if you raise a 120 lens 12" above the canopy you have pretty much negated what it can do. 60 degree is best for a ~ 4ft plant
In Hans' panels, he mixes 'lenses' in his 'lens' face (don't know what else to call it).
IMHO, the biggest (well second biggest, the first being true watts) is the lie that all a plant needs is B/R. While it is true mj mostly needs B/R, it is the other spectrums that in essence are the super chargers. This is only coming to 'light' (npi) in the last year. Now, the oter spectrums come in white diodes, which again, until recently were too inefficient. No more. Crees newest XP- series whites kick ass.
I'm guessing they will rival Induction lighting, at a MUCH lower price (the Indagrow 420 is $800). PLUS, unlike Induction bulbs, the deep and far reds are easily incorporated into a panel.
Still, for now I am sticking to best mj grow bargain around- HO T5s using 54w aquarium bulbs to simulate led spectrums. Efficient, almost zero radiant heat. A 432 w fixture covers a 2 X 4 area for ~ $350; smaller sizes are available
Check out my journal to see it in action 3- 4 weeks from harvest
Last edited by PetFlora; 06-20-2012 at 08:37 AM.
I ran a side by side test w/ a Blackstar LED and a 400 watt HPS in my grow for a couple months.
The myth that the LED was comparable to the 400 HPS was exactly that, a myth.
Not saying LED wont grow, it will. Just not as well as HID lighting.
Someone mentioned that their plants use less water and nutes with the LED. That alone tells you all you should need to know.
Can you verify that your Blackstar was in fact 400 watts?
LEDs do not have the radiant heat of hid lighting, so the plants don't go though the WATER
That said, they are still too expensive
which black star did you use? what wattage unit?