More Information Price $29.95 List Price $34.95 Weight 6 oz Warranty 5 years

When set for red light output and turned to maximum brightness, the light is bright enough to locate missing items in the grass and take down your telescope after an observing session at a star party without affecting the dark-adapted vision of neighboring astronomers. Medium red brightness levels illuminate a star chart without affecting your dark-adapted vision. Turned nearly all the way down, the red light is just bright enough to let you read your watch, the focal length on an eyepiece, or the Wratten number on an eyepiece color filter.

When the blue-white light is chosen, you have a much wider light range to choose from. If aimed carelessly, a bright setting of the blue-white light will ruin your dark-adapted vision and that of nearby observers. Accordingly, the blue-white option is only recommended when you are breaking down your scope after observing on your own, not when you’re at a star party. The blue-white light is bright enough to illuminate the path from observing site to car, making it an excellent piece of safety equipment when observing on your own but a danger to the enjoyment of other astronomers.

The light is powered by a single 9-Volt transistor radio battery (supplied) that will last for dozens of hours (the exact lifetime depends on the brightness level used). When replacing the battery, an alkaline or lithium battery will give the longest life. An 18" long braided cord lanyard is supplied that lets you hang the light close at hand around your neck when it’s not in use.