This is the perfect map light which comes with interchangeable red or white lens; designed to mount to the interior. The 19″ arm allows you to bring the light over to your map right where you need it and does not illuminate the entire cockpit like an overhead lamp. Your hands are free to fly and hold your map as the light will stay where you aim. Quickly stows away by locking into its holding clip when not needed. Order replacement bulb 78166.