I have owned three X700 flashlights for about 2-3 years. One is in service on the Adriatic Sea, the other was a gift to my daughter, and the last one is for me. We are very satisfied with these lights. I did have one problem with the on off button on my unit. I called Military Supply USA and they promptly replaced the unit. I didn't have a receipt. They looked up my email address and found the purchase record. I'm writing this review to point out that I have read a few negative reviews about Military Supply USA on this site but for a balanced review you should give some thought about my comments! We are Very Satisfied!!!