Have any of you DIY COB Growers finished a crop under 1000W DE HPS? - POLL

[Sativied]

I know of a 20,000 sq/ft commercial grow that has made plans to go all COB LED lighting but can't give any details yet.

LED is the future then.

LEDs are already replacing stadium HID lights and street lights at places.

Exactly. Don't you just love the irony in that...

Guys on here have already built 70% efficient panels

can you please link that?

For completeness it's a veg light with a spectrum less efficient for photosynthesis. It's quite funny actually, on paper anyway, but the dude is not right in the head so people just let him... Don't blame shittystikk for not mentioning that little detail though, he doesn't really understand what he parrots.


I thought someone dug up an old thread... Supra still going on about hot gavitas, a non-issue for most people who are not in the desert and know how to build a proper hps setup, skewing comparissons by downplaying the difference with DE... Pretending gavitas need plasma supplement to grow hi quality mj...(that's just desperate).

Good times but I thought you guys got over all that trying to beat hps nonsense and evolved.

 

[a mongo frog]

Grow mouse on his last DIY cob video he got 1.7 gpw on a 4x8 running around 800 or so watts of led and am sure he could attain the 2gpw, and the numbers on COB's are killers as an old HPS grower... HPS is something we used at the time because it was the best option, however today there is a revolution occuring in tech associated with cannabis, and we are in an era of transition... Everything is becoming better just growing with age old methods for 5 years and coming back will surprise you in the tech... I hit the forums every 5-10 years when I upgrade my gear and am really excited ( yep a twinge in my dick excited ) when I am seeing all this fantastic advances in Cannabis from guys have GC's in their houses, DNA Sequencers, Lights, and just the overall quality of growing methods stuff we seen as DIY 8 years ago on the forums has been commercialized and sold as systems now...

I agree Gene and growmou5 are the best. Can we see a pic of your commercial cob units in action please? Im not at all doubting the cobs trust me I'm not. Im not sure you've been on the boards long enough to see that i was a total hatter of the cobs probably what 2 years ago, however after watching and finally getting the jist of everything (which took me a lot longer then most of you guys) I love everything about them. I just don't like the hps killers type speech. Like your acting like you yield more then i do and your quality is better then mine.
Edit: I should of added captain to that list. sorry.

 

[cdgmoney250]

You want to see a 2 gpw with gavita? That would be roughly 4 pounds in a 5x5 or so area. No ones posting those kind of numbers here with cobs i don't think.

Not yet..........

 

[a mongo frog]

Not yet..........

And I'm not doubting that one bit.

 

[Astro Aquanaut]

I agree Gene and growmou5 are the best. Can we see a pic of your commercial cob units in action please? Im not at all doubting the cobs trust me I'm not. Im not sure you've been on the boards long enough to see that i was a total hatter of the cobs probably what 2 years ago, however after watching and finally getting the jist of everything (which took me a lot longer then most of you guys) I love everything about them. I just don't like the hps killers type speech. Like your acting like you yield more then i do and your quality is better then mine.

I am not putting out any pics because I am under the jurisdiction of one the highest incarceration rate places in the world, and they want to take my herb, money, and rape me... You would think it was bad enough they take your money, herb, freedom, but no they gotta rape you too... Here is grow mouses results...

 

[Stephenj37826]

It took 8 years for Gavitas DE to really take hold. Didn't mean it isn't more efficient than mogul. Just means market adoption isn't always the fastest in this industry. Mongo we aren't trying to say you aren't killing it. We are just preparing that a new more efficient way to skin a cat his at our door step.

 

[a mongo frog]

I am not putting out any pics because I am under the jurisdiction of one the highest incarceration rate places in the world, and they want to take my herb, money, and rape me... You would think it was bad enough they take your money, herb, freedom, but no they gotta rape you too... Here is grow mouses results...

Ok. Thanks for the shared info bro.

 

[Astro Aquanaut]

Ok. Thanks for the shared info bro.

No prob, I am in the technology industry per say, and we have a life cycle for technology which is around 5 to 6 years which means don't get attached to any one technology and be ready to upgrade every so often... I am in the same boat i have magnum XXL hood's, the smaller super sun's, old oil ballasts, electronic ballasts, flood trays, etc etc and my stuff isn't even DE, so when I said am going to upgrade i went and seen the DE stuff I was like oooo man.... However, I think with this revolution going on we are going to see an accelerated life cycle maybe not as hardcore as technology as in information systems but in 5 years from now I might just end up with a bunch of "anchor" gear ( gear that is worth less than the raw materials that it is made of, only good to be a boat anchor).. So, don't get attached keep an open mind and relax I think anyone who pretends to know everything is living in ignorance because there is so much we can only speculate about...

 

[a mongo frog]

It took 8 years for Gavitas DE to really take hold. Didn't mean it isn't more efficient than mogul. Just means market adoption isn't always the fastest in this industry. Mongo we aren't trying to say you aren't killing it. We are just preparing that a new more efficient way to skin a cat his at our door step.

And I'm all for that, but because I'm actually looking realistically at the moneys involved here I'm getting attacked. Which i don't mind. Might give me the nuts to drop the 16 grand. And thats only if 8000 watts can do the trick. But its a scary thing and i know you know that. Then some are calling people dumb, don't know shit, etc. etc. Biggest misconception. Medical growers are sooo richhhhhhhh. You guys know what I'm talking about. Were all friends here.

 

[ttystikk]

Ok. Thanks for the shared info bro.

I just watched the video, and sure as shit, Growmau5 is killin' it, 1.9gpw.

@Stephenj37826 or anyone, if I have my numbers right, he's running the very same driver I am and he's running twice the number of chips I am per driver. I'm running CXV3590 72V chips. Does that mean he's running them at only 25W apiece?

 

[Stephenj37826]

And I'm all for that, but because I'm actually looking realistically at the moneys involved here I'm getting attacked. Which i don't mind. Might give me the nuts to drop the 16 grand. And thats only if 8000 watts can do the trick. But its a scary thing and i know you know that. Then some are calling people dumb, don't know shit, etc. etc. Biggest misconception. Medical growers are sooo richhhhhhhh. You guys know what I'm talking about. Were all friends here.

Like I said bro. Any help you need to build your first lamp I'll gladly give any tips I can. Just build one and replace one light. See for yourself. I wouldn't change all my lights out without testing it out first myself. Also I'll just drop this little bomb here that a bin jump is coming in cree in the next month or so. So go ahead and expect 9-10% more output from all the cxb line.

 

[Astro Aquanaut]

I just watched the video, and sure as shit, Growmau5 is killin' it, 1.9gpw.

@Stephenj37826 or anyone, if I have my numbers right, he's running the very same driver I am and he's running twice the number of chips I am per driver. I'm running CXV3590 72V chips. Does that mean he's running them at only 25W apiece?

I believe he is running them at 64% efficiency however there is a bit of extra pull occurring somewhere...

 

[Astro Aquanaut]

So, from what I have learned the Ballasts are not always perfect in the amps they push out, so you may have one ballast pushing slightly more amps than advertised... which is probably where he is coming up little bit higher than the expected 23 watts... I dunno what kind of spacing he used however he may have used real world degrees with the 80° lenses and have his lights above 18" to give him coverage.. However, I believe with 18" at 80° with my calculations and drawings he is coming up short on some coverage, which could resolved by introducing more lights or bars.. I am rolling with 42x3590 @ 23 watt in a 5x5 using 58" long heat sinks (7 per a heatsink) will take me some time to get it setup, but with Stephenj saying a new bin is coming out maybe it is good because I can then take a look at the new bins...

 

[ttystikk]

Like I said bro. Any help you need to build your first lamp I'll gladly give any tips I can. Just build one and replace one light. See for yourself. I wouldn't change all my lights out without testing it out first myself. Also I'll just drop this little bomb here that a bin jump is coming in cree in the next month or so. So go ahead and expect 9-10% more output from all the cxb line.

BOOM!

 

[a mongo frog]

Like I said bro. Any help you need to build your first lamp I'll gladly give any tips I can. Just build one and replace one light. See for yourself. I wouldn't change all my lights out without testing it out first myself. Also I'll just drop this little bomb here that a bin jump is coming in cree in the next month or so. So go ahead and expect 9-10% more output from all the cxb line.

Thank you. I see the savings in these lamps i really do. Big time savings on electric bill alone. The cooling thing i don't know about. Too much math for my pee brain to do. I do know you save in cooling but i just don't know how much.

 

[ttystikk]

So, from what I have learned the Ballasts are not always perfect in the amps they push out, so you may have one ballast pushing slightly more amps than advertised... which is probably where he is coming up little bit higher than the expected 23 watts...

I run the B style and the driver runs an 8% surplus if the dimming wires are capped off. 216/8=27.25W each. So that's 63% efficient?

BIN JUMP ALERT! add ten percent to the efficiency numbers... walk me thru the math on that?

 

[ttystikk]

Thank you. I see the savings in these lamps i really do. Big time savings on electric bill alone. The cooling thing i don't know about. Too much math for my pee brain to do. I do know you save in cooling but i just don't know how much.

It's a lot. Start at half your current AC and then see what they need.

 

[Astro Aquanaut]

I run the B style and the driver runs an 8% surplus if the dimming wires are capped off. 216/8=27.25W each. So that's 63% efficient?

BIN JUMP ALERT! add ten percent to the efficiency numbers... walk me thru the math on that?

Need to know the efficacy lumens per a watt... need a spec sheet... However, that was the question I was going to ask Stephen are we going to see higher wattage at similar efficiency or higher efficiency at existing wattage?

 

[BOBBY_G]

I run the B style and the driver runs an 8% surplus if the dimming wires are capped off. 216/8=27.25W each. So that's 63% efficient?

BIN JUMP ALERT! add ten percent to the efficiency numbers... walk me thru the math on that?

no math needed, just go to the cree pct and put in DD instead of DB bin and youll see for a given cob, at a given current, voltage is the same but the lumens jump

http://pct.cree.com/dt/index.html

so we can anticipate 3000K will jump from BD to CB
and/or
3500k will jump from CD to DB
and/or
4000-6500K will jump from DB to DD

 

[Stephenj37826]

Need to know the efficacy lumens per a watt... need a spec sheet... However, that was the question I was going to ask Stephen are we going to see higher wattage at similar efficiency or higher efficiency at existing wattage?

About 10% more output not 10% more efficient unfortunately. So basically the 56% efficient cxb3590 cd will jump to over 60%. It will be DB bin now. Still a notable gain though. I'm thinking you can run your cxb3590 3500k at 1.7a and still be more efficient than we currently are at 1.4. It's really late here but I'll do up some numbers tomorrow. Also if you can't wait it a good learning tool is call the cree product characterization tool. Google it and do the drop down menus. There numbers are the bottom of the bin so those numbers are the least you will get. To be more accurate here on the forums we go by middle of the bin because some will go over the middle some under. Compare the two bins to see the increase cxb3590 CD vs DB I think. Next one down from CD.