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Old 09/30/2018, 01:02 AM   #4
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Join Date: May 2008
Location: Doc Brown's Mansion
Posts: 704
Originally Posted by mfinn View Post
I have had 4 of the gen 4's for about a year and yes the fans do stay on 24/7, but I can't hear them until I get my ear within a foot of them.
Standing in front of the tank, normal viewing distance ( 2-3 feet away) I do not hear them.
I have no idea how you don't hear them. I sleep on the 3rd floor of my townhouse and I can clearly hear the xr30 from my bed at night. I regret buying these lights.

1.21 Gigawatts?! 1.21 Gigawatts!?!

Current Tank Info: 135 reef tank, 50 gallon turtle aquarium, 1.21 Gigawatts?!
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