A very good flashlight with a broad light beam and homogeneous light, or even stronger using a narrower beam, as required. Autonomy announced is 110 hours (3 large batteries) is really huge! You can adjust the intensity which should allow, if a low intensity sufficient to further save energy. It seems solid, is very well made, very compact for an instrument containing 3 large batteries, very good grip, perhaps a little heavy on long, but we do not have the habit of using a long lamp torch here. Apart from the fact that it is Made in China, it has nothing to envy the Maglite. This is an excellent product. The manual is very simple, made sufficiently clear drawings. There is thus a mode wide beam, a narrow beam mode (the passage between these two modes is very easy, simply push the beam slightly forward or back), strobe type flash (for use in edge road accident, for example) and the mode for adjusting the intensity by keeping your finger on the button (a bright flash indicating that one is the lowest and a double flash to be stronger) .