You can't change the weather. You can't wish away the clouds. And you have no say over the brightness of the moon.
On the list of things you do have control over in astronomy – right up there with getting away from bright city lights – is the flashlight you pack to help yourself navigate your skywatching setup. Traditional white-light flashlights are the bane of the astronomer's existence, giving off harsh light that makes your pupils contract. One look at the bright light of your smartphone's flashlight – or any other normal light – will quickly destroy the "night vision" that develops as you spend time in darkness. Your pupils open up in the dark, allowing more and more light to find its way into your eye. As you become accustomed to the darkness, objects take on more detail. And for the astronomer, the stars shine brighter, the nebula appear with more definition, and the sky opens up its many wonders.
For years, professional and amateur astronomers alike have valued red-beam flashlights for their ability to light up telescope dials, illuminate star charts, and guide us to misplaced coffee mugs – all without killing night vision.
The Astro R-Lite produces the perfect brightness to protect the user’s night vision during viewing sessions. The high-performance LED will last up to 3 non-stop hours of non-diminishing brightness on a single AA battery (battery not included).