Stephenj37826
Well-Known Member
LOL . 1200 watts of cobs to replace 1000 watts. You really are delusional aren't you.
Gavita lights
- Thread starter sgrowdum
- Start date
sixstring2112
Well-Known Member
Lil parting pic as the door slaps your ass on the way out.some 5 x 6 cob action
Cobz suck,stick with what you know
PSUAGRO.
Well-Known Member
Just ignore him........ it's like cheetah ' s dumber brother
Very nice....... yes cobzzzzz suck azzzzz!Lil parting pic as the door slaps your ass on the way out.some 5 x 6 cob action
View attachment 3777582
Cobz suck,stick with what you know
Stephenj37826
Well-Known Member
If you bought citizen 1818 and pin sinks I'm absolutely positive you can build 1000 watts of cobs for less than 1000.
You could do it for 750-800 If you watch what your doing.
That's seems a lot more reasonable[/QUOTE]
You could do it for 750-800 If you watch what your doing.
That's seems a lot more reasonable[/QUOTE]
Yodaweed
Well-Known Member
So now you are insulting me because I gave a viable option for replacement? Seriously dude you are a horrible advertiser and you must be just as bad a grower with the advice you give on these forums. That website "tastyled" even calls for 3 of those bars to cover a 60x60 area which any 1kw hps can cover so my estimates of 3-4 lights are spot on according to the manufacturer, but let me guess , you now know more than TastyLED does about their lights.
Space usage and light intensity in vegetative and flowering mode:
The recommended minimum and maximum flowering and full cycle footprints are at 500 and 1200 PPFD.
The recommended minimum and maximum vegetative footprints are at 300 and 700 PPFD.
24" x 48" 923 PPFD
48" x 48" 923 PPFD (2 units)
60" x 60" 590 PPFD (2 units)
60" x 60" 885 PPFD (3 units)
Stephenj37826
Well-Known Member
What's the ppfd of a single gavita in that same area????
Yodaweed
Well-Known Member
400W a) - 1 x 1 m - 1 m2 at a ppfd of ~ 650 µmol m-2 s-1
600W b) - 1,2 x 1,2 m - 1,44 m2 at a ppfd of ~ 690 µmol m-2 s-1
1000W c) - 1,5 x 1,5 m - 2,25 m2 at a ppfd of ~800 µmol m-2 s-1
Stephenj37826
Well-Known Member
I get roughly 2.33 sq meters and according to boulder labs a gavita puts out 1614 umol. These tests where performed by an unmentioned hydro store and they tested them all. So I calculate 696 umol in a 5x5 area. So no 590 isn't 696 but 696 isn't 885 either. Of course this isn't calculating wall loss of either system or spillage......
Yodaweed
Well-Known Member
According to gavita they make 2,100 umols, according to phillips its 2,000 umols for their DE bulb as well.
a) - Philips GreenPower 400W 230V - ppf 725 µmol
b) - Philips GreenPower 600W 230V - ppf 1100 µmol
c) - Philips GreenPower 1000W 400V Electronic - ppf 2000 µmol
Comes with a Gavita Pro Plus 1000W 400V DE EL lamp, 2100 μmol s-1
- Highest output and efficacy in the market (A++ energy label)
- Suitable for Gavita Master Controller
- Plug-and-play installation
- Control range 50-115%
- Lights more than 2 square meters with 1000 μmol m-2 s-1
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Stephenj37826
Well-Known Member
Yeah but that's not what comes out of the reflector.
Yodaweed
Well-Known Member
You can say the same for COBs with reflectors or optics and without them they need to be a foot or closer or they spread the light too much.
Stephenj37826
Well-Known Member
Stephenj37826
Well-Known Member
Yodaweed
Well-Known Member
Replaceable 96% efficient Gavita HR96 reflector for optimal efficiency (HRW wide reflector as an option as from Q3 2014)
the numbers don't line up :\ I think you might be wrong buddy sorry.
Stephenj37826
Well-Known Member
Well a sphere don't lie and I promise you it's 96% reflective material...... There is a big difference.
Stephenj37826
Well-Known Member
I made that whole test report up too. Lmao not trying to prove I'm right just don't want you disappointed later when you find out im right lol. I would not mislead you or anyone else.
Yodaweed
Well-Known Member
Yea , I think you also are having other things factor into that reading of 84% , I still am yet to see a production LED that can compete with a gavita, they don't even make an LED big enough to cover the same area a gavita does, biggest yield factor is growth area and umols, and gavitas give big amounts of both.
Stephenj37826
Well-Known Member
The most efficient hid reflectors are vert bulb one bounce out design. I've had hours long conversations with Sun Systems.
Dr.Nick Riviera
Well-Known Member
Yodaweed
Well-Known Member
Yea that's true but they also need more area between hood and canopy because they make a hot spot.