1 . Lamp : Use Cree, Seoul or Lumileds for LED flashlight, Xenon light for HID flashlight. 2 . Materials and Surface Finish: Use 6063 Aluminum with common anodized, hard anodized finish, Mil-spec typeIII anodized (Optional) 3 . Reflector: Aluminum alloy, deep-dish parabolic, produces a long range targeting beam with optimum peripheral illumination to aid in navigation. 4 . Battery: CR123A or 18650 Lithium battery 5 . Lens: Tempered glass 6 . Protective : Reverse protect & short circuit protect 7 . Novel Design: Shockproof