The sector 5 packs a powerful 550 Lumen beam with the convenience of a Pistol grip for Momentary or Constant illumination. Four C batteries minimize bulk while providing ten hours of burn time. The new Trigger switch design is easy to use with gloved hands. Access Momentary light on a half pull and Constant light via full pull. The switch also locks out to prevent accidental illumination and battery drain while in Transit or storage.