Summary: Bought this to replace the fans on my Corsair H80i, which are very loud. I have to say I am impressed with how quiet they are and how well they perform. Only thing is the light could be a bit brighter, but that's not a big deal, as long as it keeps things cool.
Summary: Ordered this to replace a dying case fan. Works great. Has keep the temp in my case constant. LED does put out a good bit of light. Haven't had to replace a fan before, so I rated this one highly because it does what it is supposed to do.