Not 4 grams per watt, but 4 grams per par watt, same as 2 grams per watt at 50% efficiency. GPPW removes the lights electrical efficiency from the equation. The grow mentioned achieved a yield of 588 grams from a 350 watt output light source at 42% efficiency. 1.68 grams per watt and 4 grams per par watt. It's strain dependent but yields of over 2 GPW are achievable. Taking my example using a 42% efficiency light... the same strain under the same conditions using a 65% efficient light source would produce 2.6 GPW. Lemon Thai FWIW.4 GPW ?
I guess 4 GPW is probably close to the maximum possible yield, using close to 100% efficiency chips if we ever get there .. that would be amazing
(based on 50% efficiency reaching max ~2GPW ..)
I am not feeling inadequate, just wanted confirmation for my own guesstimate, lolNot much in theory. It's about 12% less wattage but when you factor in phototropic efficiency the difference should be a bit less. Still, 5-10% increase on a grow bordering 1000w is no small potatoes, space considered. Could lead into the "what is the best PPFD" argument. Someone I know recently pulled 1.7 GPW from Vero 29v1 at .7 amps, 770 PPFD.They were surprised.
AKA: 4 GPPW at 770 PPFD... another dot for my chart.
Didn't mean to imply it. If someone has the space it's difficult to justify going much over 800 PPFD.
...and that's a prime reason I chose as I did. At some point I'm sure I'll want to push that boundary, so using a modular approach allows me that flexibility.
Yeah that's Jerry. Just be aware there will be $40 s/h but it will be SUPER FAST. He doesn't ship by slowass "China Mail" anymore. (I had some replacement leds sent from..cough, cough, Marshydro...took 7 weeks via "China Mail". Jerry sends TNT or some other service, will likely come in 2-3 days, max.)
there the skills of the grower comes in as well so guys do overkill & do get Killer stuff but ya gotta know what yer doing
Use a little kelp & alfalfa? helps keep the stretch down some, also the night and day difference being kept to 5-10 degree difference also helps.
Well damn, son! PICTURES Pl0X?!?!
I'm not home or else I'd snap some better pics. But these are in my phone already.
Nice work JB, what drivers did you use to cover your 12 COBs? Did you go with 3 x HLG 120H-1050? That's the best config I can find to cover the 12 3070s I'll be putting together shortly.
Yo J, I've been following this thread but I might have missed where you talk about the efficiency of your 12 3590's on 2x HLG 240H C1050.
