The Streamlight TLR-8 is a 500 Lumen White Light LED Weapon Light with a 640-660nm Red Laser that fits a broad range of full size and compact handguns. Its low-profile design prevents snagging, and the "safe off" feature helps save battery life by preventing accidental activation. Features white LED and 640-660nm red laser 500 lumens; 131m beam; runs 1.5 hours (light only or light/laser combo); runs 18 hours (laser only) Uses one CR123A lithium battery (included) Securely fits a broad range of full-sized and compact guns Durable, anodized machined aluminum construction User enabled strobe function 2.15" (5.46 cm); 2.64 oz. (75g Mfg: Streamlight