This weapon mounted light is very bright at such a small size, combining both highly visible green beam and 600 lumens of white light with a throw of 130 meters. The output of the green beam is <5mW, the class is 3R. Aside from the adaptability to GL and Picatinny rails, the light can be slid back and forth on the sliding rail to the best position, which makes it even more compatible. The quick attach/detach rail mount is extremely easy to install. Green beam is added for greater accuracy and more options to select among white light only, green beam only, or both combined. Very bright at such a small size, combining both highly visible green beam and 600 lumens of white light with a throw of 130 meters. Powered by a built-in lithium polymer battery, it is rechargeable through the signature magnetic charging port at the bottom of the light. The low battery indicator alerts you when it’s time to recharge. The dual rear switches permit smooth momentary-on or constant-on activation by either hand with equal ease.