Viridian Universal X5L-FDE Green Laser with Tactical Light, Flat Dark Earth VIRIDIAN GREEN LASER: This green tactical laser utilizes a precise 532nm wave length for a more visible targeting dot in day or night, indoors or outdoors. Class 3R Laser Product (Does not exceed Class IIIA emission limits),  5mW power output LED LIGHT: 178 Lumens of bright CREE LED light blinds attackers. Use the 224 Lumen strobe mode to disorient. EASY ACTIVATION: Easily activate the world's brightest laser and/or LED light when drawn. No fumbling with buttons in critical situations. Ambi activation also available. BATTERY LIFE: 6+ hours constant laser, 10+ hours of pulsing laser runtime, 60 minutes tac laser and light. Includes one CR123A 3v lithium. UNIVERSAL MOUNTING SYSTEM: The modular rail set allows for quick mounting to virtually all railed handguns and rifles.