The X2 LED is the world"s first and best sub-compact weapon mounted light, now delivering a peak output of 80+ lumens from a new LED emitter. The X2 LED is powered by one (1) 3V CR2 lithium battery (included) and has a run time of 60 minutes. The X2 LED is easily mounted and removed, without the aid of tools, utilizing Insight"s patented Slide-Lock interface. Simply slide the unit onto the firearm"s rail and lock into place with the spring-loaded latch bar. The X2 LED Slide-Lock interface is designed to fit most sub-compact pistol rails. Please refer to the Fit Chart for your specific firearm model. The ambidextrous rocker switch allows the X2 LED to be activated in either a Momentary On or Constant On mode. The X2 LED is covered by a Limited Lifetime Warranty. Specifications: - Peak Output: 80+ Lumens - Run Time: 60 Minutes - Interface Options: Slide-Lock - Dimensions: 2.4”L x 1.4”W x 1.6”H - Weight: 1.7 oz. w/Battery - Lithium Battery Power: 3V from One (1) CR2 Battery - Warranty: Limited Lifetime Warranty.