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Old 01-30-2012, 05:20 PM   #11
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I don't use the Cree emitters on my tank, but my son just did a DIY with the Crees and he likes them so far.
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Old 01-30-2012, 07:14 PM   #12
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yeah you can't go wrong with them, and at the price rapid LED or led group buy sells them for in my opinion they are the way to go
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Old 01-30-2012, 08:03 PM   #13
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Which of the Cree LED's did you use? I see that ledgroupbuy is selling the XM-L, which they are saying is the best at the moment. The XP-G's put out quite a bit as well, at a few dollars cheaper per bulb.
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Old 01-30-2012, 08:14 PM   #14
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I am not sure of that yet...we will see. I am still a maverick that refuses to pay the extraordinary high prices some of these guys think their fixtures are worth. I am still happy with my 2 watt per LED Chinese panels. I really don't care if I have to use more emitters to get the same PAR. Proof is in the corals it has grown...the rest is speculation. I would buy the emitters carefully as CRee build many, many different ones. Some that would be useless in a reef setting. I will check with my son as he is very careful about such things and he just used CRee.
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Old 01-30-2012, 08:20 PM   #15
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Thank you very much... I'm not a super tight-wad, but I don't want to spend money on LED's that won't help my system. Thanks to everyone for the help.
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Old 01-30-2012, 09:38 PM   #16
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Do u have videos or photo of ur led setup
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Old 01-30-2012, 11:04 PM   #17
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well the XM-L has a higher intensity then the XP-G R5 and also use up slightly less voltage so you can put more on one driver.

as far as i'm concerned at this poiunt with the depths of our tanks it is still not needed, but if you do decide to get them you could always run them at lower power which will help save the life of the LED, its really your call which you would want and what you think is worth while to do.

greg there is also the fact that those LEDs are pumping out more wattage then the more powerful LEDs, no one doubts that they grow and work well, but is the longevity of the LED the same and the power consumption. to light a 180 you need 3 of your 240watt fixtures totalling 720watts where you can go with 108 cree LEDs and put out 324 watts and still put out the same if not more PAR
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Old 01-31-2012, 12:55 AM   #18
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Quote:
Originally Posted by Gti_Leo
well the XM-L has a higher intensity then the XP-G R5 and also use up slightly less voltage so you can put more on one driver.

as far as i'm concerned at this poiunt with the depths of our tanks it is still not needed, but if you do decide to get them you could always run them at lower power which will help save the life of the LED, its really your call which you would want and what you think is worth while to do.

greg there is also the fact that those LEDs are pumping out more wattage then the more powerful LEDs, no one doubts that they grow and work well, but is the longevity of the LED the same and the power consumption. to light a 180 you need 3 of your 240watt fixtures totalling 720watts where you can go with 108 cree LEDs and put out 324 watts and still put out the same if not more PAR
And pay 4 times as much. I agree in the most part...but I am waiting on the next gen multisegment emitters and getting my money's worth out of the Chinese panels. The CRee's might save me a few watts, no better life span and both have zero heat output, the difference is $$$. I have my own supply of spare parts, so I can warranty them.
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Old 01-31-2012, 05:35 PM   #19
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how much do each of your fixtures go for?
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Old 01-31-2012, 06:23 PM   #20
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I'm not allowed to talk about it on the forum. You can IM me.
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