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Old 04-20-2015, 07:40 PM   #41
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Just to throw my experience in... I am using T5 and LED. Using the T5 because that's what I had and added the LED because I wanted the shimmer. Seems to be working well. Click image for larger version

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Old 04-20-2015, 08:19 PM   #42
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Quote:
Originally Posted by PB_Smith View Post

How long have you guys been running them and how do they fair in regards to heat generation in comparison to others, as that was one of the main contentions of the article,
inefficient components=wasted electricity=heat=short life span.
2/2012 is when Greg sent me the first unit, and I bought 4 shortly after that, then a few more for the back tanks, and a year later i sold that entire system with mature sps colonies included.
I also maintain a tank that has 3 of the generation 1 units over it for about 3 years now and it's also got mature sps colonies in it, which were grown from tiny frags.
I know a LFS in Frazer, Pa. that uses these units over their mature sps loaded reef tank for years.
And lastly, my 105 had 2 units over it for about a year, which I just folded into my new tank, and simply added a third fixture. I've never had one fail and they are luke warm to the touch.

My units are at 100% blue and 40% white- not even ran at full power.
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Old 04-21-2015, 11:03 AM   #43
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so it seems that in actual usage, they stand up over time.
Like I said, not currently owning any myself and shopping around, I like to look on both sides of the fence, and I tend to lean to the technical specs to make a decision, but real world application is also a big part of the decision making process.


Was checking out BuildMyLED.com and came across a couple things that raised another concern with the units you use;
FAQ's


"Do your lights use fans?
No. From an engineering perspective, we do not believe in installing cooling fans inside LED fixtures. On average, LEDs should yield approximately 50,000 hours of useful life. However, no fan is going to last this long in wet/damp/salty environments typical in aquarium applications. If the fan fails after 10,000 hours, the LEDs would fail shortly after the fan is dead. Hence, we do not believe this is an acceptable engineering design for LED fixtures."


So are you able to easily replace the fans in those units because that is a very valid point concerning the differing life spans of the different components?
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Old 04-21-2015, 11:33 AM   #44
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T5 vs. MH vs. LED

Following along. I've wondered on that myself for BML. The led lights I bought at the store also had a box of computer fans next to them and the guy said if the fans ever fail I can just swap them out. The fans looked pretty dusty - didn't look like a big seller.

I think these lights have been going over a year and a half now with no issues. Would have to look it up.

Although just quickly worked out 10k hrs will do me about 3 years.
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Old 04-21-2015, 12:00 PM   #45
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Following along. I've wondered on that myself for BML. The led lights I bought at the store also had a box of computer fans next to them and the guy said if the fans ever fail I can just swap them out. The fans looked pretty dusty - didn't look like a big seller.

I think these lights have been going over a year and a half now with no issues. Would have to look it up.

Although just quickly worked out 10k hrs will do me about 3 years.
I know I have to replace the fans in my computer about every 2.5-3 years and they are using the exact same types of fans.

speaking of which, my system is overdue for a good cleaning and new fans......
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Old 04-21-2015, 02:24 PM   #46
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If you fasten a sheet of air filter like you might use on your furnace you can filter out the dust before the fan gets it. This will allow the fans to last a very long time.


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Old 04-21-2015, 02:48 PM   #47
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If you fasten a sheet of air filter like you might use on your furnace you can filter out the dust before the fan gets it. This will allow the fans to last a very long time.


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on all of my computers, DIY builds, I have filters every place air can enter the case, but they still get dusty inside.
the bearings or shaft always wears out eventually.
but my systems are on 24/7/365, so....

and I imagine that adding filters to them isn't practical with the LED fixtures or is it?

side question, what total wattage, as a starting point, should I strive for to keep anemones in a fifty that is 20" deep?
I was contemplating the TrueLumen linkable strips, in conjunction with 3 36" standard output T5's, but even using 3 36" inch led strips would only yield a total of 63 watts (which is lame because their power supplies are max 60, yet they want to sell three-way splitters?)
but the more I look into them, the less impressed I am.
I love the ease of utilizing them into a canopy, but I'm not so sure about the performance.
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Old 04-21-2015, 03:23 PM   #48
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http://www.advancedaquarist.com/2013/6/review

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As you can see it's easy to fasten a strip of filter material over the fans. Replace every 6 months or as needed.


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Old 04-21-2015, 07:04 PM   #49
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I don't have experience with the TruLumen, but I do with the ReefBrite XHO strips. They are pretty potent. The lower wattage LEDs don't penetrate very well. I would stick with something that has at least 1 watt LEDs. Use 3 of the Reefbrite XHO's and you won't need anything else.
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Old 04-21-2015, 07:49 PM   #50
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I don't have experience with the TruLumen, but I do with the ReefBrite XHO strips. They are pretty potent. The lower wattage LEDs don't penetrate very well. I would stick with something that has at least 1 watt LEDs. Use 3 of the Reefbrite XHO's and you won't need anything else.
just looked them up.
Pricey, for the cost of one 36" XHO 50/50 strip I could get a TrueLumen Pro dual setup, one 12K white and one 453nm blue, and an additional 36" strip through marine depot.
but on the other hand, they use 3 watt LEDs and one unit would be more than sufficient for my needs,
so not too outrageous on price and I admit I didn't look too hard, but more than the Taotronics units, but those are not a strip....

here is the product page for the TrueLumen;
TrueLumen Pro Series LED StripLights | Current-USA

didn't see where the wattage of the individual LEDs is stated, but I'm guessing .5 watt considering the number of them on a strip.
to their credit they do say that they are not enough on their own for hard coral, but claim they are good for softies.

still leaning towards just pickin' and choosen' components and building one.
Can't afford to get anything until summer anyhow, so I got's time.
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