The Double Clutch USB gives you the flexibility of shifting between beams and modes to fit your task, as well as choosing your battery source. It is also easy to use, even with gloves - just a quick twist of the facecap turns the light on and off, or changes the output from spot to flood.
LED with spot beam for distance, and flood beam for up-close lighting - both with high and low modes. Use high mode for bright light and low mode for a longer run time. It remembers the last mode used when you turn it back on.