Stealth LED Array light .

Well ...
The big-moma 4x CXA3070 Z4 light is ..history ...
(remember ? the white one ... )

Sold !

Yeap ....


It was not good for my needs and ' restrictions' ...

Very good light and very productive ..Yes ok ...
Very good cooling ( at 2.1 A ,with ambient at ~35 C ,none of the four chips went over 59 C -for 12 hours )..
Ok ...
Great so far ...
But way too noisy .... Those 5 Watters ,the MagLevs ( Sunnon ) are very powerful,
but way noisy ...

Truth is ...
I'm gettin' older ...

So ,in my case of getting older along with mj ...
1-2 small ,but very well grown female plants every 4 months ,
will adequately satisfy my personal needs of my life's 'medicine' ...
La hierba mi...

Anyway ...

I need a new light built ....
Not that powerful ...
Able to grow 1-2 small plants...

Something like 2 x Cree CXA3070 AB's .....

And as silent cooling as possible ...
And still pretty efficient ...

An active cooling scheme that ..sounds ..like passive cooling ...

( Ok-ok,just joking ... )

Sounds cool. LOL your scaling down and I'm scaling up. Loving my vero 18 bars. the plants love them too.

So ,I'm starting this time with the " FAN" part ...

In order to be efficient to push air ,rotor has to be of a certain ..large ..size ...

80 mm case fans are not the ones for sure ..
Neither the 120mm fans will do in this case ...

140mm fan ...
That sounds interesting ...

This is more interesting :

http://www.noctua.at/main.php?show=productview&products_id=52&lng=en&set=1

I got cheap intel fans and heatsinks. I run them at 9v and even a bar of 4 is pretty quiet.

Larger fans will be quieter especially if not ran full out.

what space will the light go in?

Stick two cxa cobs on a metal trashcan and be done with it......lol

Seriously though can't wait to see your new build.

Have fun

SomeGuy said:

I got cheap intel fans and heatsinks. I run them at 9v and even a bar of 4 is pretty quiet.

Larger fans will be quieter especially if not ran full out.

what space will the light go in?

Click to expand...

Space ?

Maybe a storage room's corner ,somewhere ...
The space two(well grown,but still 'stocky' ) plants need ..

PSUAGRO. said:

Stick two cxa cobs on a metal trashcan and be done with it......lol

Seriously though can't wait to see your new build.

Have fun

Click to expand...

NYH ?
( Big Apple's humor ? )

ahh. open space. I see why you want it ultra quiet. I thougth if it was in a cabinet or tent some noise gets knocked down by the enclosure. I look forward to seeing what you put together.

You were running them at 2.1A each?

Instead of making a smaller light, why not just run all 4 at 1050mA?

Just a note, my giant passive sinks (3.95" profile heatsinkusa) are pretty cool just from being near to my active ones (artic 11).

Just having a light breeze across a 3.95" x 4" x 3" passive sink (with a 40-50W cob on it) gets it pretty cool.

Just for comparison ....

The previous fans used ....( 4x )

Sunon MagLev MEC0251V1-0000-A99

120 mm square frame / magnetic bearings (VAPO)
VDC:12 V
PWR(consumption): 5.4 Watts
Oper.Curr. : 451 mA
Speed : 3100 rpm
Noise : 44.5 dBA
Airflow : 108.2 CFM / ~183.4 m^3/h


The new one ( 1x )

Noctua NF-A14 FLX

140 mm square frame / self-centering bearings
VDC:12 V
PWR(consumption): 0.96 Watts
Oper.Curr. : 0.08 mA
Speed : 1200 rpm
Noise : 19.2 dBA
Airflow : 115.5 m^3/h

churchhaze said:

You were running them at 2.1A each?

Instead of making a smaller light, why not just run all 4 at 1050mA?

Click to expand...

Even at lowest fan setting ( out of 12 ) still the noise was unbearable by my ears
and ....not 'stealthy ' enough ....

You just do not know what 4x z4 at 2.1 A ,are able to do ...
Too bad the grow had a bad ending (timeo ...blah blah ... ) .....

Anyway ..I'll need lots of words and time to describe exactly the situation here ,
at a land which is in a deep crisis (at general ,not just the economical ...)

Many cobs / arrays low driven ,is the best way ,yes I'm pretty much aware of that ...

Other "forces" do not allow this type of built ...
Not just for me ...For almost everybody here ...

Don't ask ..

Small sized and of low power but as efficient as possible ,dimmable and stealthy lights ..
That's is the 'local' custom/DIY led grow lights 'trend' ,in the south eastern coastline of Middle Earth Sea...

another superb project on the air....
about fan I can suggest the enermax in alternative...I know very well noctua and are real silence...
CLUSTER ADVANCE 12/14

CXA 3050; passiv cooled; 66 Watts


http://www.dwstudio.co.uk/case-studies/jake-dyson-ariel-uplight-downlight/

The 'known' parts ....

- 200 mm x 160 mm x 40 mm AA 1060 16-fined hetsink .(raw )
-2x Cree CXA3070 led arrays ( 3000K -80 CRI -AB )
-2x Ideal holders (had some spare ... )
-Arctic Silver 5 .



The box .....Dark grey it will be ..(my mood is fine ...It just fits the 'stealth' look (and hopefully the sound )



When austrians surpass the germans ...
Quality is way high ..Even higher of Papst Fans ...


Either I'm getting older ,really means also gradually losing my hearing ,
or I can't hear that silent thing of a fan,standing 4-5 meters away ( 15 feet ) ,no matter how hard I try to ...





Mind Imaging-Prototyping ...Before any other action taken ....
It sits very nice ...
Clerance for screws ..Everything seems ok ...



Hmmmm ..The fan will blow air towards the cxas ....
Yeap ....



I'm missing the drivers only ...

Of course ..
MeanWell HLP-80H-42 ..

What else ?

350 mA - 2100 mA range .....
At ~36 Euros each ....



To be continued ....
In detail ....

Why can't everything be as well thought out as a noctua fan...lol. They are nice in every way...except color maybe.

I found that one too slow for me but I can see how it'd be perfect for this type build!

Maybe a use for them now..

Positivity said:

Why can't everything be as well thought out as a noctua fan...lol. They are nice in every way...except color maybe.

I found that one too slow for me but I can see how it'd be perfect for this type build!

Maybe a use for them now..

Click to expand...

Oh com'on ....

" Stiff's Beige " and " BBQ Sauce Puke Brown" are very ..cool colors ...
Slow yes ....But it moves some serious air for it's 0.96 Watts and 19 dB ...

A GREAT fan !

I think it will handle 2x 3070 ,even as high driven at 2.1A ..

( at least when Ta= ~ 25 C or lower ....And trust me ....
This winter ....At my house ...Trust me on that one ....
It will be way lower than 25 C ...
Say around 13-14 C ...In da house ..
I hope so ....
If it gets lower ...
I'm 'moving' outside ,to the park nearby ....
The homeless people burn papers,carton,old wood stuff ....
I'll bring some food ,drinks and my guitar (+herb ,the easily understood ..) and join-t them ,sharing with them ..
There ,it will be warm for a decent night's sleep ..
...The cxa's can stay at my -frozen -place ...) ...

(Put-in selling gas to Europe ?
Ha-ha ..That was a good one ..
You know the other one ,with the price of petrol ? )

Cheers.

I use noctua in all my pc,and now in all my lamp,from many years...great product and best performance in silence...

Just kidding...I actually like the color of noctua. Just remember seeing lots of complaints on color in the reviews..lol. Looks professional to me personally...

Can't wait to see what you put together...

guod said:

CXA 3050; passiv cooled; 66 Watts

http://www.dwstudio.co.uk/case-studies/jake-dyson-ariel-uplight-downlight/

Click to expand...

Oh my ..Guod !

Could not find a price for that one ...

http://mynextwant.com/2014/07/15/jake-dyson-ariel-downlight/

...but judging from this one ..

http://www.switchmodern.com/Floor-Lamps/Jake-Dyson-Products-CSYS-TALL-Lamp.asp


Ouch ! ...