Unfortunately I had problems with my Spark-Lite too not long time ago. I donīt know whether it was bad item or not but itīs output was way too weak even for prepared fluffed up Tinder quik. I guess itīs rather because of the design. I am also fan of more simple survival tools. If the ferrocerium rod inside the Spark-lite could be easily pulled out and used like classic Swedish firesteel when neccessary it would be another story for me.