The LS221G is a class IIIa visible green laser aiming device with a coaxial mounted class 2 IR (infrared) laser for use with night vision devices. The LS221G features a 7075-aluminum matte black anodized housing with a quick release Picatinny rail mount. The LS221G is powered by a single CR123 battery which can provide up to 5000 hours of battery life. The rear facing selector switch lets the user select between visible low, visible high, IR low, IR high activation using the included remote pressure switch or turn the unit OFF. The LS221G also includes tactile windage and elevation adjustments for a precision zero. Power Source Battery Battery Type CR123A Battery Life (Hours) Up to modes Brightness Setting Up to modes Window Size N/A Dimension (in) 3.4×1.9×1.5 Weight (oz) 6.7 Housing Material 7075 T6 Aluminum Surface Finish MAO Adjustment per Click 0.5 MOA W&E Travel Range ±50 MOA Storage Temperature -40℃~65℃ Working Temperature -40℃~51℃ Submersion IP67 Vibration 1000G White LED Candela N/A Laser & Illuminator Type Dual Laser White LED Output N/A IR Illuminator Class N/A IR Illuminator Output N/A IR Pointer Class IIIB IR Pointer Output 0.1mw(low)/0.7mw(high) Visible Laser Class IIIA Visible Laser Output 1mw(low)/5mw(high)