Streamlight 51012 3 C-Cell Xenon/6-LED Twin-Task Flashlight, Titanium 3.6 volt high-pressure xenon bulb with adjustable focus; plus 6 ultra-bright, white 100,000 hour life LEDs 57 lumens with xenon bulb; 26 lumens with LEDs 160 hours run time with 3 LEDs; 100 hours with 6 LEDs; 5 hours run time with xenon bulb Computer machined anodized aluminum and enhanced knurled grip for easy handling Unbreakable polycarbonate lens and O-ring sealed for water resistance