John Lynn wrote a review of Princeton Tec Fuel 4 Headlamp - 70 Lumens on October 29, 2013
Familiarity: I've put it through the wringer
As a few of the reviews have already stated, this lamp doesn't stand up to much and the battery door has now broken on mine. In addition to that, it now has a short somewhere in the wiring and works intermittently. Haven't had any major drops and was well taken care of during use.