***Surefire ~ A2 Aviator/GREEN LED's*** Originally developed for professional aviators, who needed a light bright enough to illuminate a 747's tail section from the ground, yet not so bright that it would degrade their night vision when used in the cockpit. The A2 Aviator is perfect for anyone needing a high and low beam in a single long-running flashlight. In other words, it's perfect for campers, hikers, boaters, everyone. Constructed of aerospace grade aluminum with a super-rugged, military specification hard-anodized finish, and powered by two lithium batteries (10-year shelf life), the 5.6 inch, 4.0 ounce Aviator features a high-output incandescent lamp surrounded by three LEDs (light emitting diodes) set in a specially designed parabolic reflector. The Aviator's LEDs are available in five color choices: White, Red, Blue, Green, and Yellow-Green, the latter being the most-used color for aviation cockpit displays. The Aviator's unique digitally controlled two-stage switching mechanism allows the user to choose LEDs for close-up work or the high output lamp for full power applications. Digital current regulation circuitry provides a more consistent (even) level of incandescent light output and color temperature for the useable life of the batteries. Even after the Aviator's batteries have been depleted to the point that they will no longer power its incandescent lamp, plenty of energy remains to power the LEDs for many more hours. The digital current regulation circuitry also extends the life of the incandescent lamp by allowing for a (soft start) instead of subjecting the tungsten filament to the potentially damaging voltage spike that occurs when turning on an unregulated light.
