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reefkeeper2
04/07/2017, 09:52 PM
I really don't like the way the fans run 24/7 on the G4 Pros. My only problem with these great lights is that the fans are LOUD. Probably not so noticable when you have two or three but I have eight. Is there any problem with me putting the power supplies on a timer so that they are off when the lights are off? Will they reconnect and run properly when power is restored? If it's possible how about a software update to fix this.

peder
04/08/2017, 01:39 PM
Same problem with gen1, gen2, gen3, gen4, and the show goes on and one and ...............:headwally::headwally::headwalls::headwalls:

reefkeeper2
04/11/2017, 04:49 PM
No reply?

Breadman03
04/11/2017, 08:05 PM
I saw ETM reply somewhere else that it would be fine to do that, but don't recall where. I wish they'd just have them shut down like the XR15's do.

reefkeeper2
04/12/2017, 02:04 PM
I spoke with ETM support and there is no problem if I wish power off the lights. However, I was also told that the fans would last longer if they are left to run constantly. This makes no sense to me. I understand that some sensitive electronics might do better if wasn't being turned on and off all the time, but a fan? So now I'm not sure what to do.

Breadman03
04/12/2017, 05:54 PM
The fans are pretty cheap and very easy to replace. In fact, I changed one of mine out last night in about 20 minutes. I could have done it faster, but ETM changed the fasteners they use and I had to hunt down my little Torx bits. I believe my fan developed a slight wobble and it would start clicking a few times a second a few times a day.

I'd power them down at night if you want the silence.

msderganc
04/18/2017, 09:55 AM
The fans are pretty cheap and very easy to replace. In fact, I changed one of mine out last night in about 20 minutes. I could have done it faster, but ETM changed the fasteners they use and I had to hunt down my little Torx bits. I believe my fan developed a slight wobble and it would start clicking a few times a second a few times a day.

I'd power them down at night if you want the silence.

What is the size of the fan? Can you use a typical computer fan?

Breadman03
04/18/2017, 10:47 AM
What is the size of the fan? Can you use a typical computer fan?



I don't know, but I'd bet that you could source them independently fairly easily. Let me snap a pic of the fan I removed.

https://uploads.tapatalk-cdn.com/20170418/47bbea8a12cde6ee0f59630aeb6d5f03.jpg

msderganc
04/18/2017, 11:08 AM
I don't know, but I'd bet that you could source them independently fairly easily. Let me snap a pic of the fan I removed.

https://uploads.tapatalk-cdn.com/20170418/47bbea8a12cde6ee0f59630aeb6d5f03.jpg

Thanks - do you happen to know the dimensions (LxWxD)? Usually the depth is the hardest to find, as they use really thin fans for this type of stuff.

Breadman03
04/18/2017, 11:12 AM
I'm off to work, but I can take some measurements.

msderganc
04/18/2017, 02:11 PM
Don't worry, eventually found the link: http://cofan-usa.com/products/axial-fans/80x80x15-ii/

That's actually a loud fan (36db). I'm surprised they don't use something quieter. Lots of computer fans of similar size are roughly 20db.

Breadman03
04/19/2017, 06:31 AM
Don't worry, eventually found the link: http://cofan-usa.com/products/axial-fans/80x80x15-ii/

That's actually a loud fan (36db). I'm surprised they don't use something quieter. Lots of computer fans of similar size are roughly 20db.

Looking on NewEgg, there aren't many fans listed that are capable of pushing 42 CFM. Something else I found on a previous project is that the very low noise fan I had purchased was nearly silent when vertical, but quickly got very loud as I tilted it.

msderganc
04/19/2017, 11:22 AM
Looking on NewEgg, there aren't many fans listed that are capable of pushing 42 CFM. Something else I found on a previous project is that the very low noise fan I had purchased was nearly silent when vertical, but quickly got very loud as I tilted it.
Yeah, it's surprising that they don't make the case slightly larger to put in a really silent fan. A couple of 120mm+ fans would provide more than adequate air flow at less than half of the noise.

Sent from my SM-G930V using Tapatalk

aumoenoav
04/20/2017, 12:37 PM
Is it possible to change the fans on the G4 without breaking the warranty?

msderganc
04/21/2017, 10:38 AM
Is it possible to change the fans on the G4 without breaking the warranty?
Not without Ecotech's permission.

Sent from my SM-G930V using Tapatalk

peder
04/24/2017, 08:56 AM
Looking on NewEgg, there aren't many fans listed that are capable of pushing 42 CFM. Something else I found on a previous project is that the very low noise fan I had purchased was nearly silent when vertical, but quickly got very loud as I tilted it.

You have to use a Ball bearing fan and not a sleeve bearing fan to run Them horisontel.

Breadman03
04/25/2017, 07:00 AM
You have to use a Ball bearing fan and not a sleeve bearing fan to run Them horisontel.

Good to know!