Originally Posted By: Russ
From what I can tell, the 4Sevens Quark lights are made to the same standards as Fenix, but with a broader range of output.


Fenix has a 24-month warranty (http://www.fenixlight.com/service.asp?action=tiaokuan). 4Sevens has a 10 year warranty (http://www.4sevens.com/information.php?info_id=5#4Sevens).