The Crimson Trace CMR 209 Weapon Light allows you to experience the power that increased illumination can provide to your defensive firearm. The CMR-209 Weapon Light features a universal fit for most pistols with picatinny (or smaller) accessory rails measuring at least 1' from the recoil lug to the trigger guard. This best-in-class tactical light offers 200 peak lumens with bright LED white light, and an instant activation tap-on, tap-off switch. All from Crimson Trace, a brand you can trust for personal protection weapon lights. FeaturesInstant Activation: Tap-On, Tap-Off200 Peak Lumens LED White LightWater Resistant (IPX4)On/Off and Momentary Modes1.5 Hour Battery LifeLightweight, 1.98 ounce with BatteryIncludes one CR2 Battery