Orion 5756 DualBeam LED Astronomy Flashlight Two flashlights for the price of one! Multipurpose astronomy flashlight lets you choose red light or white light with the flip of a switch Red light preserves dark-adapted night vision while providing helpful illumination; white light aids while packing up your equipment when brighter light is needed Brightness wheel sets the desired intensity of either red or white light from dim to bright Runs on one replaceable 9-volt alkaline battery (included)