I have a 60" non dimmable fixture. Tonight I noticed the middle 2 bulbs were out. My question is how many ballasts does the 60" 8 bulb fixture have and do you know what bulbs they fire?
Also do they make a 60" led replacment t5 bulb for a reef tank?
On ATI fixtures, each ballast fires 2 bulbs. If you have 2 bulbs out, then you have one bad ballast. Here’s a good ballast replacement video on the Powermodule fixtures.
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