Allows predator hunting after dark. Illuminates targets in darkness out to 400 yards with an adjustable beam. Offers battery life of up to 7 hours in 0 degree temperatures. Pressure plate delivers instant-on power. Made with a durable aluminum housing with o-ring seal for dirt and water resistance. Mounts to 1” scope tubes. Operates on (1) CR123 battery (not included). Length: 10”, Weight: 13.37 oz.