|
|
|
|
|
#2
04-11-2012, 07:29 PM
|
|||||
|
|||||
If they are in a cabinet and you are just counting on the ambient air to cool them without a fan blowing directly on them, then that's just wishful thinking. All MH ballasts get VERY hot, at least mine did. I had them in my cabinet mounted to one of the side doors and they would keep shutting down until I opened the door and put a small fan on them to cool them down.
__________________
Feed the bear goodies, make a new friend, don't feed the bear............... 8' - 165gal Reef DIY LED's Build 2012 Nano Contest Winner Febuary 2013 POTM Winner 300 gal + 60 gal Complete DIY Build 
|
|
#3
04-11-2012, 07:37 PM
|
|||||
|
|||||
|
I'd say add a fan to exchange the air the cabinet and promote better cooling of the ballasts. If the air in the cabinet isn't exchanged it will heat up from the ballasts and reduce the temperature difference causing the ballasts to run hotter. This will happen even if there is lots of space in the cabinet, it'll just take longer to heat up. There's not much else I can think off that cause premature failure although I would have thought the electronic ballasts would be less of an issue...
|
|
#4
04-11-2012, 08:57 PM
|
|||||
|
|||||
|
I'll give that a shot.
My sump has been off-line for a couple of months now so my temp probe from my Apex has been out of the water. According to my graphs the inside the stand doesn't seem to be going above 68F / 20C though
__________________
Robb
|
Hybrid Mode
