Olight PL-3S Valkyrie 1,000 Lumen Rail Mount LightFeatures Upgraded Performance: It has a max output of 1,000 lumens and a max throw of 200 meters, as well as a 200 lumen low mode. Flexible and Rugged: The rail mount features an adjustable locating block for a customizable fit on a variety of rails. A robust locking device ensures secure attachment while allowing easy, one handed mounting and dismounting. The light will remain stably mounted shot after shot. CR123A Battery powered: Compatible with