I was told that they are using a PID feedback circuit for the output thermal control regulation and that there are 256 steps to the output available to the PID circuit.
Evidently this will allow the light to throttle back output in such small increments that it will continue to run while adapting to the available voltage and heat without our being able to really perceive these changes.
I don't know how different this is than other lights but it sounds complicated to me?
This is also part of the reason the 1,2 or 3 battery option will work in there as the light will make sure the output stays uniform.
Again what I think I was told or at least how I heard it or remember it?
Refer to the post #12 in this very thread.
Most lights do one of the following:
a) use a dumb stepdown timer that can be reset by turning the light off and back on (think SC600 and SC52),
b) step down to the next available level—usually staying there—upon reaching a certain thermal state,
c) do nothing and, depending on the output, risk permanent damage to itself or the owner.
This light uses the "b" approach with a twist: it will attempt to maintain its output and, if need be, vary it in very small steps to make sure you never experience a significant drop-off in brightness as long as batteries can keep up. I'm wondering, though, whether that'll also mean gradual rampdown on low battery as opposed to the usual stepping down.
I think removable cylindrical battery holder can not provide 3 independent positive terminals required by battery powering system of S6330. This might force Zebralight to give up their famous unibody aluminum casing.
I was rather thinking of a triple battery tube that needs no holders, but that would mean thick tube walls (+weight) or some fancy protruding limiters (+complexity, –reliability).
