... range 2640yard in darkness 3.Low power usage Product name Laser Sight Model NO. INRE-303LS-532 Specification 1,Length: 4 ... CR123 Lithium4,Tube Diameter: 1 Inches(25.4mm)5,laser colour: Green6,laser wavelength:532nm7,Output Power:5mw in mainly,and 10mw ... ,Lightweight,Compact, Shockproof8,Adjustment Type: Allen wrench Packing include A Laser Sight,a Mount,a CR123 Lithium Battery,two Allen Wrench ...