NITECORE IFE1 INFiLUX 1 CELL LITHIUM 3V R-5 CREE LED 0.5 LUMENS 100hrs - 260 LUMENS 1 hr + BLINDING STROBE. I HAVE SUREFIRE, FENIX, PELICAN, MAG, STREAMLIGHT, DeWALT, COAST, JUST TO MENTION A FEW!!. THE NITECORE INFiLUX IS BY FAR THE BRIGHTEST LED OR INCANDESCENT TORCH IV`E EVER OWNED!!!. BRIGHTER THAN A MAG LIGHT 4D SMALLER THAN A 2AA.