NightStar FAQs - Why doesn't NightStar interfere with night vision?

NightStar doesn't affect your night vision due to the fact that it's not overwhelmingly bright. If you're using a Maglite for example, and you're looking at the area illuminated by its beam, your eye's natural tendency is to aperture down to obtain a comfortable light level. If you now look away from the beam, everything looks dark and will remain so until the eye's iris dilates to allow more light in.

With NightStar, the iris remains open to the point where objects outside the beam are still visible. This is one of the reasons the military prefers NightStar for extended night time operations.

More Frequently Asked Questions:

• Who invented the shake flashlight?

• How does the switch work?

• Why do NightStar, NightStar CS and NightStar RS require different amounts of shaking?

• What are the magnets made of and how are they magnetized?

• Can light output be made brighter by replacing the StarCore® LED with an incandescent bulb?

• Can batteries be included in the design to allow for a longer, brighter light output?

• Is a pacemaker sensitive to the magnetic field that surrounds NightStar?

• Can adding more LEDs increase the light output?

• How is the charging magnet reflected at either end of the flashlight?

• Why was a lens chosen for the output window?

• Why doesn't NightStar interfere with night vision?

• Why is the housing made from plastic?