Sixstrings Led Cob Builds

[sixstring]

Thanks, I will try not to ask too many questions.

Its no problem bro,keeps the thread moving.

how many watts is that??

In that part of my grow im up to about 2200w of cobs now.same space used to have 5000w of hps.when im done with this side it will be around 2800w maybe 3000w so im already saving a shitload of power and a/c usage :)

 

[Freshone]

Its no problem bro,keeps the thread moving.

In that part of my grow im up to about 2200w of cobs now.same space used to have 5000w of hps.when im done with this side it will be around 2800w maybe 3000w so im already saving a shitload of power and a/c usage :)

What size space did you replace the 5000 Hps for 3000 led in? and what was the cost to build them?3000 so what is that like 60 cobs?thanks six

 

[sixstring]

well its not 3000w yet but yeah it will be about 60 to 65 cobs when its done depending how i drive the last few bars.costs for cree cobs and meanwell drivers with the round heatsinks runs about 1.50 to 1.60 per watt again depending how you drive them. i spend about 1500.00 on new lamps 2 x a year so theres one thing i wont be doing anymore lol.but you can build cheaper using cheaper cobs and driving harder your cost per watt will go down.i built most of these bars @ 1050 ma for efficiency,and i have a few bars running 1400ma and one set up @ 75w per cob.

 

[sixstring]

shop is 12 x 20 so the cob side is roughly 10 x 12 minus some water tanks and the doorway

 

[Freshone]

So your building 5 or 6 cob bars and using those in multiples?can you Daisy chain them?

 

[sixstring]

you prob could but i just have them wired 3 drivers per power cord/outlet

 

[sixstring]

Here ya go @stonestacker ,mud didnt show up till 11am but we got er down :)

I should be feeling about 80 years old tomorrow morning lol

 

[stonestacker]

After burning up my compost/old log pile I do feel 80.
I should be in your hood tomorrow picking up an order from growgreen.

 

[sixstring]

If ya see bart tell him sixstring says hi,he'll get a laugh out of that lol

 

[sixstring]

Put up another bar and shuffled some stuff around. Plus i got rid of another 600w hps :) the new bar has the new sstx square heat sinks from ngl,i shoulda pushed em harder.i have those cobs running at 63w each and these puppies are cool as a cucumber.

 

[SpiderK]

six ....

does one of your buddies run a machine shop ? if not, what are you paying for the cutting and sheets of metal. are you collecting the scrap ?

 

[sixstring]

six ....

does one of your buddies run a machine shop ? if not, what are you paying for the cutting and sheets of metal. are you collecting the scrap ?

i cant let the cat out of the bag just yet lol.but those flat bars i had cut for me at Alro mfg in ann arbor,but it was not cheap so i decided to get a plasma cutter.the new bars might be on display here this weekend,i had to send them out to have bends put on them for strength.as long as this is taking i shoulda paid the 6k and got my own bender to lol.but because the new design is 8th in plate i cant just use a harbor freight bender on them haha.but yeah the scrap is getting used for driver straps and connecting bars to attach multiple bars together. so with this cad program im using theres only about 1 to 2 pounds of scrap per 4 x 8 sheet of aluminum :cool:

 

[HugzAndNuggz]

not to side track you from your forum but its nice to see other michiganders rocking it out... funny i work at a grow shop here in genessee and we honestly dont get many people coming in about led's yet..

 

[sixstring]

not to side track you from your forum but its nice to see other michiganders rocking it out... funny i work at a grow shop here in genessee and we honestly dont get many people coming in about led's yet..

No problem, i dont get too anal about people shootin the shit in here unless someone goes off for 4 pages about some stupid shit like how their cat shit in their pot plant lol. Anyhow i think in anothet couple years we will see a major shift to using led tech because every time we build another big hid grow op we tax our power grid a lil more.i read a while back i think maybe in Colorado they were talking about limiting or banning hps lamps because of the environmentalimpact it has both with lamp production and disposal plus the power draw.im ready if and when it happens

 

[PhatNuggz]

24' x 32' x 10'h insulation is going to be blown in poly,R40 walls and R60 ceilings, after i wire the piss out of it lol.i'll take lots of pics bro :woot:

Wouldn't it be cheaper (and easier) to buy 4 x 8 sheets of foam board from Lowes/HD?

 

[stonestacker]

Wouldn't it be cheaper (and easier) to buy 4 x 8 sheets of foam board from Lowes/HD?

Foam board is not cheap, and the r value aint shit.

 

[sixstring]

Wouldn't it be cheaper (and easier) to buy 4 x 8 sheets of foam board from Lowes/HD?

No man it would be around triple the price plus i would have a million seams everywhere lol.this stuff fills every nook and cranny,its how they are doing a lot of the new construction here in Michigan

 

[DrMcSkunkins]

Put up another bar and shuffled some stuff around. Plus i got rid of another 600w hps :) the new bar has the new sstx square heat sinks from ngl,i shoulda pushed em harder.i have those cobs running at 63w each and these puppies are cool as a cucumber.
View attachment 649829 View attachment 649830 View attachment 649831

Are one of the cobs loose on the left of the last pic or do you have them where they have adjustable angles?

 

[sixstring]

Are one of the cobs loose on the left of the last pic or do you have them where they have adjustable angles?

No i made that fixture a lil different and its 4 x cree @ 75w each and they swivel because of how i mounted them.so i had those 2 cobs so close together with how i mounted the last bar so I just adjusted those other cobs a lil

 

[sixstring]

sneak peek,need to mount some heatsinks and get some better pics

got a pile of 2700k cobs lookin for a place to hang out lol,another long day coming :banghead: