The manufacturer’s description of the SureFire flashlight mentions that it has four useful colors that “cut through fog to help you find blood trails or hydraulic fluid leaks.”
Let’s hope it’s hydraulic fluid leaks.
But the point is clear. Aviation is a serious business that requires a serious, purpose-built flashlight. The SureFire features a dual-output light, which includes a standard 250-lumens, white LED and a multi-colored LED. The multi-colored LED reduces eye fatigue and allows you to read while preserving your night vision.
So scrap the old Coleman or Maglite and get a light intentionally designed for pilots.