These US made lights are unique in their focusing ability by utilizing a patented focusing Aspherical hardened optical glass lenses which allows for a significant array of focusing options ranging from a flood to spot beam. This ensures that the perfect focus setting is available whether you are concentrating the light hundreds of yards away, or simply lighting up an object nearby. This is complimented by precision machining from 7075 Aluminum or aerospace grade Titanium resulting in a superior compact flashlight.