The Planted Tank Forum - View Single Post - DIY Cree XML LED Lighting for 150G
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post #22 of (permalink) Old 06-15-2012, 04:54 AM Thread Starter
Algae Grower
Join Date: Jun 2011
Location: Southern California
Posts: 137
Originally Posted by monkeyruler90 View Post
Looks amazing! I'm planning on building an led light with XML U2s and was wondering how hot they were going to get. Thanks for posing your experiences with them!!
Thanks. I really enjoyed making this light. Everything fell into place very nicely. Ultimately, I don't think the LEDs are getting too hot (since I can touch the aluminum without discomfort when there is not fan). Still, the spec says that the LED will last indefinitely when kept at 30 deg Celsius so I'm using a fan across them. I don't know, I will probably replace these lights sooner than before the LEDs wear out.
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