streamlight tailcap dimmer run times

[medix]

I have a question about the tailcap dimmer/flasher made for the streamlight sl 20/35 flashlights. I was wondering if anyone has done runtime testing on this particular device? I know it uses pulse width modulation to offer a range of brightness levels cycling the intensity of the bulb down and back up to full power. The ststed run time for the flashlights are 90 min/full chg. At reduced levels for near field tasks the run time is extended what I would like to know is how much. I realize that there is probably an infinate ammount of different times possible due to different levels of intensity but a test for run time at the very lowest level would be a good refrence against the 90 min full power to give me some kind of idea. Any help or information would be appreciated. [img]images/icons/grin.gif[/img]