A few years back I rediscovered Streamlight and their ProTac and Polytac lines. I bought and carried the PolyTac, 2L, and my personal favorite tactical light - the 1L/1AA. I’ve never had one fail, but it’s good to know their customer service is as good as their lights!Streamlight is very underrated.
I once owned and still do a AAA microstream. I lost it one summer in my yard, after a year of rain, snow, mowing the lawn, and weather, I had found it wedged in the mud. I picked it up, clicked the switch and it turned right on. Worked perfectly. Few months went buy and the switch was acting up, emailed streamlight and sent my light in for repair, they sent me back a brand new 45 lumen model for free. Excellent CS and from now on I will always have a streamlight microstream as a backup