HElp from any and all LED heads.....

Hey peps....soo long story short I lost my grow room due to a move so where I'm at now I have tto use a tent that has to stay zippered so there's no way I'm gunna be running g my 600 w hid without major heat stress even with my 34e cfm exhaust I don't have a cool tube just a batwing.......so I have a 4x4x7 tent I'm not a believer in LED mainly because I never used them and they are just outrageous in price. But if you were in my shoes and had to buy and USA a LED LIGHT and you only had 300-350 to spend what would you buy? Or should I just not even try? And if something will work for my price range.....I'm just using this as an example but would a guy be better off using two 300 watt fixtures or one 600w......or one 1200 or two 600w I'm sure you get my point. Any info would be greatly appreciated

Johnnygrows420 said:

Hey peps....soo long story short I lost my grow room due to a move so where I'm at now I have tto use a tent that has to stay zippered so there's no way I'm gunna be running g my 600 w hid without major heat stress even with my 34e cfm exhaust I don't have a cool tube just a batwing.......so I have a 4x4x7 tent I'm not a believer in LED mainly because I never used them and they are just outrageous in price. But if you were in my shoes and had to buy and USA a LED LIGHT and you only had 300-350 to spend what would you buy? Or should I just not even try? And if something will work for my price range.....I'm just using this as an example but would a guy be better off using two 300 watt fixtures or one 600w......or one 1200 or two 600w I'm sure you get my point. Any info would be greatly appreciated

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Wait until I had a little more for the light and Diy
I would do 9 citizen 1818 or luminus cxm22
3 240-54 drivers
9 heatsinks holders and reflectors

That's what I'll do then.......my only other option is using the 315w LEC they put off very little heat.....thanks for the info

That will give you about 800 ppfd for the area

It basically seems like if you don't have at least $1,000 to spend on an LED light you're not getting a good lite and even at that price they can be outdone by HIDs

Not $1000 but $600 if you diy and look for cheaper prices

Johnnygrows420 said:

It basically seems like if you don't have at least $1,000 to spend on an LED light you're not getting a good lite and even at that price they can be outdone by HIDs

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watt for watt i understand COB to be close enough to be considered equal. but 5 years down the line it will have payed for itself several times over.

all said and done, buying tools and everything i payed my light off for a 4x4 space in one grow and plenty of cash left over

Yeah I feel ya but I just can't right now......in a bad spot

I decided to throw down the $400 for a far smaller 90w light than the near 1kw I could have bought for about the same. I didn't care about the loss of light output. It was more the efficiency and low heat output I was looking for.

NapalmZen said:

watt for watt i understand COB to be close enough to be considered equal. but 5 years down the line it will have payed for itself several times over.

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5 years down the line there will be LED bulbs more efficient than your panel.

Currently philips already has bulbs that are 117 lm/w and Osram has 122 lm/w ones.
That is with driver losses and diffuser losses included.
So if the average driver has 10% energy loss, they are equivalent to 130-135 lm/w cobs.(Assuming similar LER)

Have a look here if you search a very "cool" solution:

http://www.lumen-laden.de/products/coolmac-300-w-wunschspektrum-wassergekuhlte-led-lampe-6-x-50w-cob/

If you like innovation in led-light I can recommend 300W coolmac / watercooled led light kit
with surprising low price but a bit work in soldering and filling with water. (1h)
It`s made
↑
for decreased heat and electricity.
There are other versions up to 1200W lamp power but for 16sqf I recomend that 300W is enough.
You can use this lamp to produce hot water and the basic coolmac 300W need a watertank
of min. 30L.

Size: 50 x 33 x 4.5cm

Reliable performance: 295 Watt

Heat / power: ~ 160W / corresponds to the heating of 80L water from 16 ° to 36 °

within 11.6 hours. Or with daily use of 12 hrs. a power output of 701 KWh annually.

Chip: 6 x 50 Watt Full Spectrum Chip 380nm-740nm / 33V @ 1.5A

Lumen: 28000-29000LM and very good PAR values.

Driver KSQ: 6 x 50 Watt 1,5A @ 20-39V / IP 66 / PF 97%

6 x optical lens 80-90 ° with reflector and retaining ring

Other materials: aluminum sheets and square tubes, 4 x hose-fitting, 6m hose 12mm,

3 steps underwater pump 2.3 watts, stainless steel screws

brand: lumen-laden

The prices are around 1$ / real watt of lamp power. When you look to the lamp - it`s structure is very simple and easy to understand and with a bit talent and cutting drilling of aluminium you can buy components even cheaper (160$ all components incl.)
For CREE-leds and meanwell-drivers you have to pay a reasonable suplement or deal a special price for the basic coolmac. The owner is very open minded in prices and special wishes of his clients. Don`t forget that it comes from Germany and that you have to pay VAT and custom duties.

I tried this spectrum before and get very satis. for good results and low cost by only
18W / sqfeet while flowering under the table ( 3 feet high only ). Now I will try the same room with this lamp and fix the flat thing close to the top to win height. So I hopefully get the heat out
in summer or bring heat back to the roots during night. There are plenty possibilyties what to do with led-heated water - not only in growrooms - and specialy now in winter

Johnnygrows420 said:

Yeah I feel ya but I just can't right now......in a bad spot

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I understand that nothing wrong with getting what you can and upgrading later. Get a few harvests and things can get easier to buy. Since you already have a batwing maybe put the money into a portable ac and go from there.

I have watched all growmau5 vids and looked a lot at sourcing my own stuff... I have said this on many threads (I swear I don't work for these guys lol) Timber grow lights seems like a very easy and configurable way to go.. not the cheapest but very reasonable when looking at ordering all parts diy

frica said:

5 years down the line there will be LED bulbs more efficient than your panel.

Currently philips already has bulbs that are 117 lm/w and Osram has 122 lm/w ones.
That is with driver losses and diffuser losses included.
So if the average driver has 10% energy loss, they are equivalent to 130-135 lm/w cobs.(Assuming similar LER)

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agreed, but in that time cob grow specific lights will perhaps have gone further. depending on how its built, it will perhaps be modular enough to upgrade at $15-40 per cob to have an exponentially better setup. but what do i know, i'm a newb.

meangreengrowinmachine said:

I have watched all growmau5 vids and looked a lot at sourcing my own stuff... I have said this on many threads (I swear I don't work for these guys lol) Timber grow lights seems like a very easy and configurable way to go.. not the cheapest but very reasonable when looking at ordering all parts diy

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my problem with timber is that if you source the parts yourself and spend a small amount of time researching, you can build identical or similar setups 20-50% cheaper. timber simply sources the parts for you into one place and resells for a large markup. i understand that this is business, but to me buying from them is simply lazy and expensive.

Johnnygrows420 said:

tent that has to stay zippered

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In my experience, with no AC or cool filtered air pumped in from outdoor, a zippered tent with good light will always get too hot.

@RainDan @REALSTYLES @CobKits

JJ43 said:

In my experience, with no AC or cool filtered air pumped in from outdoor, a zippered tent with good light will always get too hot.

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Those 315w cmh dont put off hardly any heat ....I wonder if this would be a better way to go

qballizhere said:

Not $1000 but $600 if you diy and look for cheaper prices

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Question? Im looking at doing a similar set up with 9 cobs but I was thinking vero29 gen 7 3000k 80 crib 38v bxrc-30g10k0-d-73 and either running them on hlg 240h-c2100b and running about $400 total for the cobs and supplies......just curious why you suggested this option. I haven't pulled the trigger yet but I'm looking to grab 108 cobs.. just looking for options thanks

Godfather420 said:

Question? Im looking at doing a similar set up with 9 cobs but I was thinking vero29 gen 7 3000k 80 crib 38v bxrc-30g10k0-d-73 and either running them on hlg 240h-c2100b and running about $400 total for the cobs and supplies......just curious why you suggested this option. I haven't pulled the trigger yet but I'm looking to grab 108 cobs.. just looking for options thanks

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The vero is a good chip you just get more ppfd with the citizen or luminus with the same amount of cobs you also can run the citizen harder if you wanted.
Using the led calculator
VERO29.V2.0.4000K 9 COBS @2.1A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 93% EFFICIENT DRIVER @10 CENTS PER KWH
Total power watts at the wall: 772.04
Cobs power watts: 718
Total voltage forward: 342
Total lumens: 94848
Total PAR watts assuming 10% loss: 263
Total PPF: 1215.06
PPFD based on canopy area: 817.42
Citizen.1818C4.3000K 9 COBS @2.1A ON 1.813 PROFILE HEATSINK
16 SQ.FT. CANOPY 93% EFFICIENT DRIVER @10 CENTS PER KWH
Total power watts at the wall: 1097.85
Cobs power watts: 1021
Total voltage forward: 486
Total lumens: 140898
Total PAR watts assuming 10% loss: 387
Total PPF: 1880.82
PPFD based on canopy area: 1265.31