Time to bump this thread. I've had the opportunity to use one of my Strion bulbs for about 8 hours now judging by the number of battery pairs I've put through it, and most uses involved extended runs of the incan lamp in my coffee farms. The bulb has darkened some but it's still plenty bright. Like my overdriven M6 regulated at 7.5V with the MN21, the glass envelopes seem to suffer more from the heat in extended runs. Used in short bursts, the blackening is delayed.
I am still ever so pleased with this setup. Out to 80 yards in pitch black conditions huge areas can be cleared with no problem.
Well so these kits have been around long enough that probably some members have had the opportunity to really test them any comments ?