maglite of course always great , but now with this newer version it apparently have different mode . after look a few place and not see how you change the mode I notice a few post of people say how it change mode after be hit or nudge . it 'll do that only if the battery spring be not put enough tension on the battery . switching mode be very easy actually , all you have get to do be turn it on and off and on in a somewhat quick succession . BAM , it be on full bright then you twist it off then twist it right back on , viola you just go to dim . do that again and again you will get blinking and then the SOS blink . after that it 'll go back to bright , just in a sequence of be on\/off .