Beamshot X1-G Green Laser Sight, Black Laser output power: Class IIIa, output power is less than 5mW, eye safe laser product. The Green Laser will perform best between the following temperature ranges: 23 degrees F to 104 degrees F (-5 degrees C to 40 degrees C). Laser sight is waterproof. The Green Laser will perform best between the following temperature ranges: 23 to 104 (-5 to 40). Laser sight is waterproof 2 MOA windage/elevation alignment system, 1/2 inch adjustment per click at 25 yards. Grade recoil system absorbs a .50 BMG machine gun's recoil Four distinctive operation modes: constant, 2Hz, 4Hz and 8Hz for group assault missions Ambidextrous toggle switch: push on, release off. Quickly double pushing for 5 minutes for constant on Built-in versatile rail mount. Powered by two AAAA inexpensive batteries with Led indicator for power on and low battery indication