XT DF (with Charge Kit)The XT DF has a maximum brightness (primary setting) of 600 lumens, with a secondary light level that's user programmable at 15, 60, or 150 lumens, or strobe. In keeping with our emphasis on intuitive design and simplicity in our law enforcement tools and training, activation is via a single pressure switch on the tail cap press once to activate the primary max setting, twice (''Double Tap'') to activate the user programmed secondary mode. Setting the