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Old 04-12-2013, 08:31 PM   #1
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My expensive LED light fixture died too soon

I got a Marineland Reef-Capable LED light fixture (24" size) for my tank in July 2011. I loved the way it lit my tank, and it may be what encouraged yellow colony polyps to start growing in my tank. But this fixture died last week! I called the manufacturer, and the nice customer service rep promised to send me a replacement, no charge, even though mine was out of warranty. I think she realized that a fixture that cost > $200 should last more that 21 months.

I got the replacement fixture, and set it up, and my tank is back to being well lit - and hopefully my soft coral polyps are happy, after enduring several days with only dim, yellowish fluorescent temporary lighting.

But I'm worried about the cause of this premature failure, and that it might happen to my new unit too. I could not see anything wrong with my original unit, and I did confirm that its power adapter was delivering voltage which I presume was right (in the neighborhood of 5VAC IIRC).

I did not see any evidence of corrosion, though I did not disassemble the fixture body. But I wonder whether the inevitable moist, salty air rising from my tank contributed to its premature demise. Or maybe I just had a bad unit. Or maybe these Marineland LED fixtures are prone to early failure.

Wondering if anyone has any opinions / suggestions on this issue.

65-gal tank with sump & skimmer below, no bubbles in main tank

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Old 04-12-2013, 10:50 PM   #2
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I say chalk it up as a bad unit. It happens. Don't stress over it.


"When creating an aqua scape, strive for the beauty of imperfection, as its art and there is no wrong or right, it's left open for interpretation" James Findley
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Old 04-13-2013, 11:37 PM   #3
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I have the same 24" Marineland HO LED, programmable but in the plant friendly spectrum on my 16g tank. It's been great! I dropped it in my tank and got water all in it. It started glowing a weird red color and the program window was all goofy. I just knew I had ruined a $200 + unit. BUT> I took the end caps off(very easy) dried off what I could and then set a hair dryer on low blowing into it for about 20 min. Put it back together and it works perfect. Has for months so far. The voltage to it is stepped down to 12v so it did not shock or kill me or the fish, A BIG plus! I'm sold on high end LEDs! OS.
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Old 04-14-2013, 12:07 AM   #4
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The reef marinelands run hot. I suspect that is the problem.
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