Energizer Hard Case Tactical lights are virtually indestructible, multi-functional, lightweight and versatile - with many features critical to helping military personnel do their jobs safely and effectively. Cutting-edge LED technology is packed inside these lights with three varying intensities for bright white, red, blue and green light modes. Infrared (880 nanometer rating) and strobing IR for IFF (Identify Friend or Foe) also are important features of these multi-functional lights. And for ease of use, each LED is controlled with its own discrete switch.