12xCXB3590 Passively Cooled

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mypassion

Well-Known Member
Netherfly said:
IMHO it's very simple, you wanna run passive? Then invest more.
More COB's running at a lower amperage will give you the efficiency needed to run passive.
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Can you tell me what exactly I am looking for? All I want is good coverage and no heat. I will invest, but idk in what... Help me out pls :)
 
ttystikk

ttystikk

Well-Known Member
V

VegasWinner

Well-Known Member
Netherfly said:
Today finished building the moonshine still, prepared the first batch of 50L mash.
It consists of flaked corn, barley, sugar, water and yeast.

From the barrel, through the waterlock, hopefully lots of Co2 will enter the tent the coming 3 weeks
:bigjoint:

View attachment 3653418 View attachment 3653419 View attachment 3653420 View attachment 3653421 View attachment 3653422
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Do you cook your mash and than ferment for three weeks in a tub before running in the still? Nice still good workmanship and welding with copper. That is an art. Peace
 
V

VegasWinner

Well-Known Member
HydroRed said:
My understanding of the 3' by 5.886" heatsink is that it is just within the threshold of being a passive with our configuration (at least with the cxb3070). Im curious to know what the actual temps are on that heatsink as a passive. I have mine set to run with a fan, but might scrap that if it runs too cool. Whoda thunk the day would come that someone would be concerned about high intensity lights running "too cool" haha.
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I am running 2 cxa3590 at 50w each with a fan and the heatsink is cool to the touch along with the remote driver. Peace
 
Netherfly

Netherfly

Well-Known Member
ttystikk said:
@Netherfly gonna have to start calling you the moonshiner!
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VegasWinner said:
Do you cook your mash and than ferment for three weeks in a tub before running in the still? Nice still good workmanship and welding with copper. That is an art. Peace
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Let's just say that in 3 weeks i hope to be sitting in the sun, sippin' from my very own jar of moonshine :lol:
 
sforza

sforza

Well-Known Member
mypassion said:
4x cxb 3590 3500 on a MW 1400. Passive cooling... I can't say what temp the heatsink is. I can keep my hand on it gently but when I had to get it down I had to wait 30 min not to burn my hands. I guess adding 2 vents won't do shit...
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Are you using the 72V or 36V version of the CXB3590? If you are using the 72V version, can you dim your driver down to 700ma? If not, get a big ass fan or a few little fans blowing on the heatsink and you will be fine.
 
sforza

sforza

Well-Known Member
Netherfly said:
Found one, next week i'm getting another power meter to test with.

Day 56, 21th day of bloom:

I definitely overdid it with the growth period, they stretched even more.
Right now the lamps are almost at the highest point possible.


:peace:
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Like me, you are being forced to see how close you can get your lights to the tops of your plants, because you are running out of room to raise the lights. Perhaps if you had kept the light closer to the tops of the plants when they were smaller, they wouldn't have stretched quite so much.
 
Netherfly

Netherfly

Well-Known Member
sforza said:
Like me, you are being forced to see how close you can get your lights to the tops of your plants, because you are running out of room to raise the lights. Perhaps if you had kept the light closer to the tops of the plants when they were smaller, they wouldn't have stretched quite so much.
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In my case it's most definitely the growth period that was wayy to long :)

ttystikk said:
I want to make a still and be just like you! Show me how?
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If you wanna make a still, but don't wanna fiddle with copper, make a "Samogon Aparat"
It's a russian moonshine still, usually made from a pressure boiler, much easier to make.
I got some bottles of Samagon in my closet, straight from Russia (my girlfriend is russian) guud stuff!

Look, even the Chinese are catching on :): http://wholesaler.alibaba.com/product-detail/NEW-Fashion-30L-8Gal-Brewing-Equipment_60428308175.html?spm=a2700.7724857.29.57.3hWyzY

This morning went to check on the mash, it seems to be doing something :bigjoint:

 
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Netherfly

Netherfly

Well-Known Member
mypassion said:
Can you tell me what exactly I am looking for? All I want is good coverage and no heat. I will invest, but idk in what... Help me out pls :)
Click to expand...
I don't feel qualified to tell you what to buy ;)
This is my first LED setup, and much of it is also borrowed from fellow RIU members.

So you could try and copy this setup, since it seems to work just fine so far. Just remember that when you're in a hot climate, make sure to get the slightly larger heatsinks, like Growmau5 is selling via Cutter.

:peace:
 
M

mypassion

Well-Known Member
sforza said:
Are you using the 72V or 36V version of the CXB3590? If you are using the 72V version, can you dim your driver down to 700ma? If not, get a big ass fan or a few little fans blowing on the heatsink and you will be fine.
Click to expand...
I will try dimming ... vents are no option... I need less heat no vents if that's possible
 
M

mypassion

Well-Known Member
Ok... I have a dimmer but no clue what pins to use for what cables... I asked a guy to test it and he said he doesn't know for sure and told me to try middle pin and right pin as I look to the rotative thing... I saw in mau5 video he said the opposite middle and left... Then I tested it with a multimeter but I get same values no matter how I connect the wires.... What would happen if it's connected wrong? Will it break anything?
 
Netherfly

Netherfly

Well-Known Member
Well, i finally found a second power consumption meter.
The readings are a bit off, so i give you the average: 520W :bigjoint:

Hanfred said:
Hello Netherfly,

are you using far red leds too, or only CXB COBs?
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Still didn't use the far reds, i'm delaying that till next grow :)

mypassion said:
Ok... I have a dimmer but no clue what pins to use for what cables... I asked a guy to test it and he said he doesn't know for sure and told me to try middle pin and right pin as I look to the rotative thing... I saw in mau5 video he said the opposite middle and left... Then I tested it with a multimeter but I get same values no matter how I connect the wires.... What would happen if it's connected wrong? Will it break anything?
Click to expand...
Couldn't tell ya, I didn't use dimmers yet!

Day 61, 26th day of bloom:

Luckily growth stopped in time, some tops are pretty close to the COB, but no problems are visible.
The moonshine mash is bubbling nicely, a lovely mixed smell of fermenting barley and blackjack fills the tent (:

China send me a nice fish-eye/macro lens for my phone today, so me and my girlfriend were busy taking lots of pictures of the flowers when we arrived home


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buckets

buckets

Well-Known Member
These last few pages with pictues have been awesome! The still and the custom design of the lighting structure. Awesome is the only fitting word here!
 
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