New to this hi tech flashlight stuff so I got reading this forum and thought I'd give it a try. Ordered from AmondoTech the TM301X-3 Big Q-III w/Hi Lo and uses 2- CR123, and fell in love with the light but after about 3-4 minutes of use on hi it shut down with what I thought I heard was a click. I tried a different set of batteries and still nothing. With the tail cap off and no batteries I can hear somthing rattling around in the head. Everything I can check without taking it apart is tight. I also don't see the reflector or LED moving around so have come to the conclusion that an internal component came lose inside. This light was not subjected to any abuse. In addition to this I checked the included batteries and they measured 3.061 and 3.07V. Don't think that could be it. There was no smoke or even any smell of it from this unit. The lose component is big enough to be felt when it is gently shaken. I wrote an email to AmondoTech and will wait for there reply to see what they can do but my question is if anybody out there has had any problems like this with there Big QIII and if it is an EZ fix???? Thanks in advance.