The MOD-1 Cockpit Light comes in three versions, the 'W' (White LED) which can be dimmed for night vision protection, and still allow all of the colors on the sectional chart to be visible, the 'R' (Red LED), historically 'night vision safe' , and the 'G' (Green LED), the latest to be introduced, is psychologically soothing and ideal when using Night Vision Goggles.