Large diy led build info PLEASE

3500d

Member
Ok so I've read info on diy leds until my eyes crossed 4 or 5 times over. I am to the point I want to build some fixtures but I'm still trying to decide the best route here. The room has 2 tables, each is 4' wide and 28' long. What's my best route
 

VegasWinner

Well-Known Member
Each fixture with a driver and four cobs is 200w. You will need 28 of those. Eit, her you should start building fixtures or pay someone to build your 28 fixtures at 1400ma each. That is 4-cxb3590 1-hlg-c1400b 4-pin heatsinks, framing, wiring, wagos.
namaste
 

MasterpieceNutes

Well-Known Member
Sticker shock time:

Can confirm you need 28 4 light fixtures @1400ma for 40ish watts sq. ft.

I've been delivering these @$450-500ea (A mere $50-75 for labor and tooling is included). I doubt you will find anyone willing to make these for under $50ea for their time. (this is NOT an offer to build.. but an electrician local would prob hook you up).

28x $450= $12,600- build yourself: $10k + $200 in tools. (And a couple week or two of 40hours ea time to order/build)

-Let me tell you why nobodys making LED rooms this big: If you're growing that kind of plant footage you get a greenhouse.
 
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freemanjack

Well-Known Member
As a 'back of the rizla packet' calculation, you would need around £6000gbp to fill that space with my style of rig there as material costs, more than happy to send you a supplier list and part numbers to see wot it would cost in your country. those are 80w vero's so you would need approx 56 cobs, we recon we are hitting rock bottom prices on bang fer yer buck. Btw, i got nuthin to sell here, i build to personal order only and am uk based.
 

Evil-Mobo

Well-Known Member
As a 'back of the rizla packet' calculation, you would need around £6000gbp to fill that space with my style of rig there as material costs, more than happy to send you a supplier list and part numbers to see wot it would cost in your country. those are 80w vero's so you would need approx 56 cobs, we recon we are hitting rock bottom prices on bang fer yer buck. Btw, i got nuthin to sell here, i build to personal order only and am uk based.
Hard to beat the new Vero's for @$25 USD each from @robincnn
https://northerngrowlights.com/collections/all/products/bridgelux-gen-7-vero-29-cob?variant=26284958280
 

sixstring2112

Well-Known Member
those 1050ma? Terrible ad overisight that they don't tell you what mA those run at. If they are 1050 you still need 28 of em for 40w+ sq ft. ..
28 x $775 = $21700
they are 420watts so no,not 1050ma.70w per cob or prob 65ish plus driver draw..and no you would not need 28 of those fixtures,they cover a 4x 4 nicely.lots and lots of pics of large grows on ig with genes fixtures.
 

sixstring2112

Well-Known Member
he only wants to cover 224 sq feet,that not huge by any means @MasterpieceNutes i already have half my 240sq ft room fitted with cobs and im only doing them part time because i been too damn busy to build them.alot of larger growers have left the forums for instagram so if you look there you will see large cob rooms.
 

MasterpieceNutes

Well-Known Member
I thought you said COB LED is taking over commercially? Fuck man you just fucked some of us......
LOL. Really? This guy is commercial grower. FOR HIM it makes no sense to do this. First off, at that kW scale he pays about 1/3 as much for electricity with business rates. With a proper room (high ceilings, tons of air movement)- he can run HPS and NOT set up vented hoods).
But honestly, nowadays if you have $15k to invest in lights (implying you're making this your career) you're being naive if you don't move to the scale of legitimacy: Talk to some biz people. Seek investors and get collateral loans with a proper business plan. Go to a bank or get private funding and scale your operation properly. The thing to do would be to finance a semi automated greenhouse under state licensing with a proper llc or corp backing behind it.

-That probably means relocation atm. But how many states on ballot this tuesday? Environment is changing rapidly. And at that scale, relocation makes sense. And next month there's bound to be lots more opportunities.

If you have $1k or $2k and want to grow your own, LED lights make tons of sense. No more hvac, hoods, need for vent sources, no more reflector glass cleaning, no more bulb changes every crop, no more hps/mh switch outs, -all these benefits + 25-40% electrical savings, for a better light, that runs more efficently than any other man-made light source?

Case1: this guy is growing weed for a living. 99% of us here: not the case. -You see why LEDs are taking over?
If I owned a commercial greenhouse I'd be throwing in LED highbays, and they would be off except for sunlight stretch (keeping them in veg) or after more than a day of cloudy.. Other than that? Waste of money at that scale until we see some better pricepoints especially.

Those pricepoints are coming? I hope. Citizens are impressive, Figure you switch your design to a citizen build and take what, 15-20% off the overall price, -Not bad. But certainly not game changing yet. EVENTUALLY commercial will switch over.

-TLDR: Nobodys fucked.
 

MasterpieceNutes

Well-Known Member
he only wants to cover 224 sq feet,that not huge by any means @MasterpieceNutes i already have half my 240sq ft room fitted with cobs and im only doing them part time because i been too damn busy to build them.alot of larger growers have left the forums for instagram so if you look there you will see large cob rooms.
-Economy of scale is kinda getting lost on you. If you are stuck with a 200 sq ft room, eventually I assume it fills with LEDs. Yeah, it makes sense, especially if you have need to cool your space. I get that.

BUT As an upfront expenditure? It's silly. $15k in finance will secure $100k easily.

That's making this decision: running an illegitimate 50lb per year operation versus a legitimate 500lb+ year operation. Thats your choice with $15k in your pocket. And let me tell ya, all the guys running option A are NOW competing with GOOD greenhouse Sensi at $140 oz.(Its arrived East coast) -Legal weed is changing the game. (edit: changed hydro to sensi- brain fart)
 
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sixstring2112

Well-Known Member
-Economy of scale my friend.. I don't think you are applying correct perespective. Lets talk volume for a minute to put this in scale: 2lbs per 4x8? 224sq
i dont think this is a big room lol.you may think 12 lights is big but others may not.2 tables of 4 x 28 would be 14 lights tops if you use the gavita estimators,and they always try to over sell the lamps.its a 12 light room nothing more.what i said about prices of cobs was,its not alot of money to drop 10k on lighting for your op if you think in pounds.for me its 2.5 pounds of weed to pay for 10k of lighting,and your right,i should be able to get that off 1 table of 4x8,so the rest would be icing on said cake
 

3500d

Member
Sticker shock time:

Can confirm you need 28 4 light fixtures @1400ma for 40ish watts sq. ft.

I've been delivering these @$450-500ea (A mere $50-75 for labor and tooling is included). I doubt you will find anyone willing to make these for under $50ea for their time. (this is NOT an offer to build.. but an electrician local would prob hook you up).

28x $450= $12,600- build yourself: $10k + $200 in tools. (And a couple week or two of 40hours ea time to order/build)

-Let me tell you why nobodys making LED rooms this big: If you're growing that kind of plant footage you get a greenhouse.
Unfortunately greenhouse isn't an option
 

3500d

Member
i dont think this is a big room lol.you may think 12 lights is big but others may not.2 tables of 4 x 28 would be 14 lights tops if you use the gavita estimators,and they always try to over sell the lamps.its a 12 light room nothing more.what i said about prices of cobs was,its not alot of money to drop 10k on lighting for your op if you think in pounds.for me its 2.5 pounds of weed to pay for 10k of lighting,and your right,i should be able to get that off 1 table of 4x8,so the rest would be icing on said cake
I didn't think it was too big either... shit I been trying to figure out how I could make it bigger!! I like the way you think... I'm thinking in pounds as well. Right setup=bunch of pounds=bunch of money
 

sixstring2112

Well-Known Member
you could def build cob bars cheaper if you have the motivation.its still going to be about 6-7k for diy. i would suggest you email plc and speak to them about your setup if you want to go the prebuilt route
 

MasterpieceNutes

Well-Known Member
=Reminds me of my bitcoin run. I got in early, AMD graphic carding. Initially it made no sense. At $13 it made no sense even. At $1400, WTF.

The early adopters kept their lead. We had cheapest acquired btc, despite having paid most upfront for gear. And that trend continued. All of us who kept buying the best, newest miners kept beating others out, riding a wave of efficiency we enjoyed despite the high upfront. -EARLY LED adopters theoretically are enjoying same benefit (18 month roi on elect savings vs hps, yaya)

Heres where it gets weird: prices start dropping, equipment remains priced at same threshold. ONLY the early adopters were making money. New adopters paid more than it was worth as market crowded and btc price simultaneously dropped.

BTC is as fucked as the USD now as far as wealth distribution goes. The fish that kept eating are big enough now, they won't be displaced. The market is squarely big players and everybody else is nobody. There's no positive roi on mining without being a big fish. (Data center sized mining ops with cheap elec and free cooling- priced the little guy out of it. )

With legal weed we're seeing the same big player math coming out.

I see your big LED room. It's a weird situation man. He's pulling 30lbs-50 year? $100k-$150k wholesale BEFORE expenses? -Its just not smart economy of scale. $20k worth of lights there? For less than .2 acre.. I don't want to bust your bubble, but look at what $100k will get him legit with a greenhouse.. (mind you, you don't just buy a greenhouse, -you finance one. Get a business plan already). Smart investors will jump on people who were able to run at that scale and are looking to move to proper commercial size.
 

ttystikk

Well-Known Member
Sticker shock time:

Can confirm you need 28 4 light fixtures @1400ma for 40ish watts sq. ft.

I've been delivering these @$450-500ea (A mere $50-75 for labor and tooling is included). I doubt you will find anyone willing to make these for under $50ea for their time. (this is NOT an offer to build.. but an electrician local would prob hook you up).

28x $450= $12,600- build yourself: $10k + $200 in tools. (And a couple week or two of 40hours ea time to order/build)

-Let me tell you why nobodys making LED rooms this big: If you're growing that kind of plant footage you get a greenhouse.
Lots of indoor builds this big and bigger. Greenhouses can actually be more expensive to operate due to HVAC costs.

LED is already a better investment than light bulbs for indoor growing.

Frankly I think your assessment is dead wrong and betrays a lack of commercial industry experience.
 
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