I have owned many Surefires and Streamlights over the past two decades. In particular, I had two cars of this model. The last one I bought (an upgraded version of the original with higher lumens) broke down after about three months. I contacted Streamlight and they told me that the rear derailleur is most likely defective. I went ahead and bought another tail switch and it still didn't work. Changing batteries doesn't work either. It seems that companies that continue the lumen war are not offering adequate heat dissipation. I don't know if this is part of the problem and possibly affecting the microprocessor, or if companies are buying cheaper processors, but I think it's time to try Olight. Check out the many positive reviews on YouTube and here on Revain. I don't mind paying 100, 200 or even a little more, but I want the lights to work when they need it, not just for three months.
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