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

[PSUAGRO.]

All the dudes hyping DE as well... How tall are your ceilings? I am working with 9 feet and do better under 1k single ended than 1k de. Just because the height restrictions . I use some gavita 600/750 in a small grow and they do great ... Just as well as the standard 1k in my opinion. Does anyone have a room full of 600/750s? Curious of the gpw pull on this. I was able to clear 2.3 ps from 1 fixture in 600 watt mode. That's about 1.7gpw... And that fixture is under 400 bucks . That sounds a bit more efficient than a cob for the cost am I wrong?

always liked that 600w/750w de fixture since I heard of it...............pulling some very good #s grower

highly efficient cobs are expensive initially , that is the reality, so is getting more grams per watt on a cash crop=== gotta "weigh" your options(pun intended)

 

[cdgmoney250]

I just pulled 1.41 GPW off of a 3000w grow. Over 2.5 oz per sq ft.
With COB LED. Ceilings are at 78".

If a LED unit hits the market that grows as much weed as my DE and uses less power to do it.I'll be first in line to buy it.
I don't want to spend 2500 bucks on 3 units to replace my 1 gavita either.

I could build you a fixture to beat your Gavita DE 1000w and would use between 600w-700w... But it would cost (retail) probably $1600-1800, to maintain that "profit margain".
Actual cost closer to $1200ish.

Thinking (16x) CXB3590 @ 1A.

Would there be a market for this type of fixture?

::EDIT:: Over 2.6 oz per sq ft.

 

[frica]

600-700 watt replacement fixture for a Gavita is not worth it when you could replace 1000 watt of Gavitas with 1000 watt of COBs and get a greatly increased yield.
More yield brings more money than reduced energy costs.

 

[chuck estevez]

I just pulled 1.41 GPW off of a 3000w grow. Over 2.3 oz per sq ft.
With COB LED. Ceilings are at 78".




I could build you a fixture to beat your Gavita DE 1000w and would use between 600w-700w... But it would cost (retail) probably $1600-1800, to maintain that "profit margain".
Actual cost closer to $1200ish.

Thinking (16x) CXB3590 @ 1A.

Would there be a market for this type of fixture?

so you would cram 3 units into 1 huge box? I am a REAL world grower looking to take my gavita and put a unit in that covers the same footprint but grows more weed for the same or less power and less heat, is that possible?

 

[Greengenes707]

600-700 watt replacement fixture for a Gavita is not worth it when you could replace 1000 watt of Gavitas with 1000 watt of COBs and get a greatly increased yield.
More yield brings more money than reduced energy costs.

Do you have any examples of someone using a 1000w of cob in the same space as they would have a gavita or DE and they increased their total yield?
Link?

 

[cdgmoney250]

I am a REAL world grower looking to take my gavita and put a unit in that covers the same footprint but grows more weed for the same or less power and less heat, is that possible?

Yes.
That is what I'm referring to. Each 600w+ fixture would still cover 25-36 sq ft.

The fixture itself would be about 12-14 sq ft. Imagine a ceiling full of evenly spaced high power LEDs. The canopy penetration is unequaled due to the multiple sources of light.

 

[kmog33]

I never said 4 pounds in a 5x5 area that was you. I said 2 gpw. That is true and I won't take it back lol.

2gpw at 1k watts is over 4 pounds...?


Sent from my iPhone using Tapatalk

 

[chuck estevez]

Yes.
That is what I'm referring to. Each 600w+ fixture would still cover 25-36 sq ft.

The fixture itself would be about 12-14 sq ft. Imagine a ceiling full of evenly spaced high power LEDs. The canopy penetration is unequaled due to the multiple sources of light.

no thanks.

 

[cdgmoney250]

Something along these lines.

 

[chuck estevez]

yeah, that looks better than 1 gavita.

like comparing a solar powered tank to a ferrari

 

[cdgmoney250]

I yielded more than most HID grows with my first run on these.
Including DE.

Over 3lb per 4.5' x 4.5'. And the quality is a great improvement as well.

No worries Chuck.

 

[BOBBY_G]

Yeah I understand that but it's not 10% more efficient it's 10% more lumens per watt. So at 1.4@ the 3500k cxb3590 is not going from an overall efficiency of 56.34% to 66.34% Is all I was getting at lol.

well its actually not even 10%. if the minimum spec jumps from 12000 to 13000 lumens thats like 8%

and whos to say the current chips arent at or about an average of 12800 and theyre jumping to 13100 for now?

 

[PerroVerde]

Something along these lines.

View attachment 3614086

@cdgmoney250 very nice grow you have there! Props!

 

[chuck estevez]

I yielded more than most HID grows with my first run on these.
Including DE.

Over 3lb per 4.5' x 4.5'. And the quality is a great improvement as well.

No worries Chuck.

look at all that equipment, i don't look at grams per watt as a measurement, that is for dumbasses that don't have a clue. I look at REAL WORLD uses. it's just like when high efficient a/c's hit the market. sure they were efficient, but it required a sub patio to put one in. NOW they are the same size as older units with twice the efficiency, just like computers. LMK, when LED are down to an Iphone and I am in. Get it?

 

[chuck estevez]

Right, figured that. I'm just trying to learn, not necessarily trying to swap out my brand new chips already lol

here is EXACTLY my point. He is SO heavily invested, his opinion has become one sided. had he bought DE's, he would be singing their praises. He will deny it and scream a bunch of shit about led's in 2 years,yada,yada,yada, but it IS because he is deep in it now.

 

[pop22]

"automobiles will never replace horses! CD's will never replace vinyl!" Uh huh...

Nope, never have grown with DE's, never will. Shitcanned my 600watt HPS long ago. for one reason only, It costs more to control heat issues created by HPS/MH than it does for LED as LED creates about 20% ( conservative estimate ) less heat per PAR/W. So the extra cost of the light is balanced by a reduction in heat output. The ROI will be close enough to justify the cost. DE's and HPS's days are numbered. how much less will it cost to cool that $100,000 op running LED? And that's comparing running at the same power level. Use what ever metric floats your boat, the answer is the same, LED has matured enough that it IS gaining ground in the commercial segment. And if the day ever comes when cannabis is legal nationwide, the ability to write of the equipment will be the nail in HPS/MH/etc coffin.

 

[cdgmoney250]

look at all that equipment, i don't look at grams per watt as a measurement, that is for dumbasses that don't have a clue. I look at REAL WORLD uses. it's just like when high efficient a/c's hit the market. sure they were efficient, but it required a sub patio to put one in. NOW they are the same size as older units with twice the efficiency, just like computers. LMK, when LED are down to an Iphone and I am in. Get it?

Haha so first it's show me an LED light that can perform just as well as Gavita (or better).

Check. Done. Mission accomplished.

Then it's show me light that performs better than Gavita, and looks really cool too. Not too big maybe pocket sized?

Gotta have the aesthetics to grow dank plants.

I judge a grow light by how well it performs at growing plants.

 

[Stephenj37826]

well its actually not even 10%. if the minimum spec jumps from 12000 to 13000 lumens thats like 8%

and whos to say the current chips arent at or about an average of 12800 and theyre jumping to 13100 for now?

Those numbers are at test current. At 1.4 a it is around 10%.

 

[chuck estevez]

Haha so first it's show me an LED light that can perform just as well as Gavita (or better).

Check. Done. Mission accomplished.

Then it's show me light that performs better than Gavita, and looks really cool too. Not too big maybe pocket sized?

Gotta have the aesthetics to grow dank plants.

I judge a grow light by how well it performs at growing plants.

AGAIN, you are comparing a solar powered tank to my Ferrari. I just want a plug and play light that does what you guys claim, without taking up another room to do it. and doesn't look like a fire hazard. so NO, mission NOt accomplished

 

[Jp.the.pope]

Something along these lines.

View attachment 3614086

That looks like my biggies I'm working on good work