Lighting Lets talk Fanny! ... seriously now, LED fan upgrades!

koibosher, here is
Rep%20Slap%20copy%20small.jpg
for team effort !!


But, there is a slight "flaw" in your post. The test was well done, except for one variable. I was like ..."... impossible, this is all wrong!!..." - but then your last comment on the Zalman 130mm made everything else make perfect sense.

Notice this difference;

....................... |Closet temp.|Heatsink temp.|Room Temp.|Near db.|Far db.|
Factory Fan........|.....23.3c......|.......35.2c......|.. ....16.4c....|...~68...|..~55..|
noiseblocker X1..|.....28.9c......|.......52.1c......|......20. 9c....|...~47...|..~38..|
................................+5.7 ............+16,9............. +4.5

So if you subtract ambient temp -4.5


....................... |Closet temp.|Heatsink temp.|Room Temp.|Near db.|Far db.|
Factory Fan........|.....23.3c......|.......35.2c......|.. ....16.4c....|...~68...|..~55..|
noiseblocker X1..|.....24.2c......|.......47.6c......|......16.4C....|...~47...|..~38..|
............................+0.9 .................+12,4 ...............+0

Now, if we take into account that RH is key to how much heat can be transferred (different days, different RH), and instrument error etc etc... So that 1'C increase in closet temp could be simply due to increased RH by a few point from one day to the next, and all things considered I would say this is temp increase is negligeable.

We also have to come to the the conclusion looking at these numbers that, logically, the fans CFM on the X1 will not be as effficient dissipating heat as stock. Great. We already knew that. But I am really surprised at how little! Anyway,we can almost assume the X1 make a slight 12'C increase difference to overall operating temperature.

Closet temp is almost the same, slight increase. Closet temp is a factor of exhaustion of heat from the system. They are virtually identical, and I would bet my life that these numbers will always be the same in a higher efficiency tent/exhaust.

The heatsink temperature rose considerably, but nothing dangerous I would say. lower CFM fans will dissipate heat slower, so the heatsink will heat up faster. How did you measure the heatsink BTW, how long were the fans running for when you measured? So maybe, with the X1s the heatsink reaches 52'C in 2 hours while with stock it would take 4? Dunno...

Anyway, what I am trying to get at is the the PRIME culprit in overal heat is the intake/outake of air in the whole system, no only the fans. Its this ambient air change that transfers heat away. Slow it down, heat rises. In my situation with RVK fans, no problem, I felt no difference in ambient temp whatsovever.

That is exactly what brought me to LEDs. Heat managment to be able to turn down a 200mm RVK fan with a voltage controller down 4/5ths of the speed and become completely silent while still extracting a heapload of air and keeping temps really comfy.
 
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:tiphat: mmm rep slap... Cheers!

I couldnt agree more regarding overall input/ouput of air in the room being the main factor in heat control. e.g. A water cooled pc running in a 50c room isnt going to cool itself any more than 50c.

I placed the remote probe from the thermometer in the center of the heatsink. I dont have a proper metal thermal measuring kit, and i doubt temps are accurate. But its a comparitive result at least. Both figures were attained with same the variables... Probe placement on heatsink, starting temp of heatsinks, length of time fans were run was 4 hrs before temp taken.

Another note on this: temps plateaud in both cases at the 2 hour mark (a very slow rise after 1 hr). I opened the closet once to set up experiments, again @2hrs, and finally at the end. This was an attempt to not prick around with closet temps too much and get an idea of airflow performance .

In my scenario, i want the closet temps (mainly dictated by ambient room temps) to be between 20 and 28 deg. celsius. So i guess thats our key question... Can lower cfm fans maintain safe operating temps given closet temp is X, room temp is Y, and airflow through the closet is Z (CFM).

Thanks for mentioning RH as a factor also.. I missed this, its an important point. I live in a high humidity area. Dehumidifiers will be used to stabalise RH room.
 
Agree!

Excellent stuff! make me wonder indeed...

all in all I think the ambient temperature safety level for the LEDS to potentially fail due to heat increase is lower than safety level for plants to grow. I'm cool with that :d5:
 
Just a quick Update for anyone modding their lights:

I've been using 2 modules on the 0006 for a week now with my 3 green babies underneath.
Temperature wise, running very cool indeed. Temps range from 20C to 27C in the closet without any manipulation, apart from upping the Zalman exhaust fan to 7V (from 5).
So Im thinking not only is this light efficient in light output - but offers me the exact thermal dissipation required to keep temps at plant loving levels. ...With a proviso that the Summer doesnt get too hot!!

Now for the bad news:
1 X1 Fan is not performing - i can see a lower rotation rate and slight noise is present. The temp is only differing a little in fairness.
I have ordered more spares, as Im confident it will last until the replacement can be done.

These things happen - although its a bit dubious and Ill be keeping a VERY close eye on the rest Noiseblocker X1's.
One more goes funny and they're all getting replaced with Noctua fans and a speed controller. Fact.
 
Is this topic dead? I would like to upgrade my fans from basic ones to some more stealthy... so i wondering if im running 2 apollo 6 units in DS60 is it a smart idea? :)
 
Is this topic dead? I would like to upgrade my fans from basic ones to some more stealthy... so i wondering if im running 2 apollo 6 units in DS60 is it a smart idea? :)

As a PC Modder, I use only Noctua fans. they are quiet yet move a good amount of air, and they are very reliable. They are certainly worth their price.
 
Is it possible to suggest me some fan from Noctua? or to tell me which one you are using?

Thanks
 
Resurrecting this thread as I am about to embark on another fan mod!! This time a dual COB upgrade and fan upgrade on my SOL 9
My Ms0006 has been working FLAWLESSLY for these past 3 years. best upgrade ever! Highly recommend it as you're probably out of warranty anyway ;)
I absolutely LOVE LED, but I really hate the fan noise.

Will be back soon. On the hunt for 9 silent 80mm fans … anyone care to join the hunt? :headbang:
 
here ya go, good company, been buying from them for years:

http://www.xoxide.com/casefans.html

Resurrecting this thread as I am about to embark on another fan mod!! This time a dual COB upgrade and fan upgrade on my SOL 9
My Ms0006 has been working FLAWLESSLY for these past 3 years. best upgrade ever! Highly recommend it as you're probably out of warranty anyway ;)
I absolutely LOVE LED, but I really hate the fan noise.

Will be back soon. On the hunt for 9 silent 80mm fans … anyone care to join the hunt? :headbang:
 
here ya go, good company, been buying from them for years:

http://www.xoxide.com/casefans.html

WOW !! blown away. What a coincidence. Was pondering on modding the case and get rid of multiple fans for one big one spinning slower, and came across these guys. They make a 360mm fans apparently.

Unfortunately I'm in Europe. And since I've got the power drivers all set up, between cost and setup, I might as well just swap out the current fans that are perfect size & fit for the heatsinks.

Seriously, My GN MS0006 mod worked so magnificently well that I'll be just replicating that.
 
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