I have one and have been very pleased with it. It's become my primary work light at the steel mill. Hopefully it'll still work it I drop it off a 80ft. crane, unlike the stinger it replaced.
The switching for the light is unique. It's all done in the one switch.
Push once =high
Push and hold it will cycle through the three different power levels(about one level per second)
In any brightness push once it will turn off
press the switch completely twice quickly and it will go into strobe mode.
The strobe mode is a quick pulsing strobe, I've found it very useful when using with a traffic cone.
Speaking of that, it has the same bezel diameter as the regular stinger, so lens covers, gels, and traffic cones all work with it.
It seems to be a well built light, my only complaint to this point is the switch is VERY stiff. It seems to have loosened up a little in the 3 weeks or so that I've had it.
Sorry if I'm jumpingt around topics here but it's late and I've had a few beers, another neat feature of this light is the tail cap. Because there is no spare bulb, they drilled two holes in the tail cap so you could hook on a keychain, or lanyard. It tail stands very well.
Bill