Review on Coolerguys 40mm (40x40x20) High Airflow IP67 Waterproof 12V Small Fan by Paul Monzon

Addendum: This fan has been running 10 times a day for almost a year and still has no problems. I solved the noise problem by moving the fan to a box that circulates air through ducts to my vivarium. Added star for durability! It's a very small fan that moves a pretty decent amount of air, but it's very LOUD. For my use in a terrarium this is a major infraction as it stuns inside!