(DIY) How much LED do I need for a 4'x4' flowering box?

[dankylarry]

Will only be used for flowering
Thinking of using these COBs with a meanwell driver.
http://www.ebay.com/itm/262002991017?var=560801640498
How many would be enough to flower 4 plants in a 4x4?
Which will give me more light ?:
a.) Two of these 100w ebay COBs wired in series
b.) one name brand 100w COB ?

 

[jeepster1993]

You will want about 600 watts of light. Anyhow. I would shoot for more.

4x4 is 16sf, 40 to 50 watts/sf.

 

[HydoDan]

Have a look...www.cobkits.com ... better components..
@CobKits

 

[Lordhooha]

Will only be used for flowering
Thinking of using these COBs with a meanwell driver.
http://www.ebay.com/itm/262002991017?var=560801640498
How many would be enough to flower 4 plants in a 4x4?
Which will give me more light ?:
a.) Two of these 100w ebay COBs wired in series
b.) one name brand 100w COB ?

Stop please wait and get all good quality cobs. Cree, citizen, vero like @HydoDan said cobkits has good stuff there you can grab som citizen 1212's and be better than those eBay specials. You'll be happier.

 

[Lordhooha]

https://cobkits.com/product/clu048-1212-active-light-engine-single/

Here already has heatsink fan and reflector on it. Things you would have to get with those eBay lights too no heatsink and those lights would burn up before your grow is done.

 

[bryan oconner]

would it just be better to buy 1 put together to me its cheaper assembled . ? what am I missing . these better then assembled or you just like to put them together as a hobby .

 

[combustible herbage]

I got a Johnson grow light four months ago and it's killing it pulled 25 more than I did with my other lights check him out.

 

[brimck325]

25 more what?

 

[combustible herbage]

Percent

 

[combustible herbage]

Hell I guess it was more than that went from 1 pound 3o to over two pounds first time I ever hit two pounds.

 

[combustible herbage]

Call that guy he can tell u everything u need to do he knows his stuff! He will help u even if u don't buy his lights I talk to him for a month before I decide to switch from hps.

 

[Lordhooha]

would it just be better to buy 1 put together to me its cheaper assembled . ? what am I missing . these better then assembled or you just like to put them together as a hobby .

It is a hobby but generally they do better than MOST prebuilt lights. They may have the drivers to push the lights but they stay on the safe side and don't push them to their fullest potential. I am usually way cheaper than a prebuilt, but it's all up to the end user.

 

[Lordhooha]

I got a Johnson grow light four months ago and it's killing it pulled 25 more than I did with my other lights check him out.

Those Johnson grow lights are nicely put together I thought about getting their maximizer light before.

 

[dankylarry]

Have seen some really nice rigs advertised on this forum but I dont need my light to impress anyone but my plants. Will probably use two old heat sinks from a mac pro tower, a big heat sink salvaged from an old home stereo amp & possibly house the drivers in an old gutted DVR box.

 

[Lordhooha]

Have seen some really nice rigs advertised on this forum but I dont need my light to impress anyone but my plants. Will probably use two old heat sinks from a mac pro tower, a big heat sink salvaged from an old home stereo amp & possibly house the drivers in an old gutted DVR box.

I'm looking at water cooling and drive them hard

 

[Trippyness]

Please for the love of growing dont buy cheap Epiwatever COBs.
If your going cheap get some Citi from @CobKits
For optimal growth 50w a SQ/f, yield will be great if you know what your doing.
900 + PPFD is what your after.

Whats your budget?
Personally I would go with either Citi or Vero29 at 2.1A with MeanWell or Brightstar drivers.
If you got a little more money you can go with 1.4 or 1.05A but with more COBS for better efficiency. However for me I prefer 2.1A for flower or 1.4A for Veg/ seedlings.

If you need more specific help PM me.

TRIppy

 

[Lordhooha]

Please for the love of growing dont buy cheap Epiwatever COBs.
If your going cheap get some Citi from @CobKits
For optimal growth 50w a SQ/f, yield will be great if you know what your doing.
900 + PPFD is what your after.

Whats your budget?
Personally I would go with either Citi or Vero29 at 2.1A with MeanWell or Brightstar drivers.
If you got a little more money you can go with 1.4 or 1.05A but with more COBS for better efficiency. However for me I prefer 2.1A for flower or 1.4A for Veg/ seedlings.

If you need more specific help PM me.

TRIppy

I was looking at building some until I was looking and my wife told me to buy what I wanted she didn't want anymore homemade lights lol so I just ordered two of these.

https://www.ledgrowlightsdepot.com/collections/1000-watt-hid-replacements/products/lifted-led-city-14

 

[HydoDan]

Man those are definitely not DIY... I don't think I could sneak one those by my wife let alone two... I hope to see
them when they arrive..the ppfd looks incredible... is it programmable? Or like a WiFi remote?
Nothing like a new light!!

 

[rob333]

Have a look...www.cobkits.com ... better components..
@CobKits

just follow cob kits and what they have and buy the shit from rl components my mate saved about 200 bucks

 

[Lordhooha]

Man those are definitely not DIY... I don't think I could sneak one those by my wife let alone two... I hope to see
them when they arrive..the ppfd looks incredible... is it programmable? Or like a WiFi remote?
Nothing like a new light!!

You can use your phone and control it as long as they're both on the same network. My wife just told me to buy what I wanted your not building lights anymore. They're in stock so hopefully they'll be here buy next week, these should be insane. They weigh almost 40 lbs a piece I'm excited to see what they can do!