Model HY Laser103 Quantity 1 Color Black Material Harden aluminum Laser color Green Laser Power 5 mW Wave Length 532 nm Excitation Mode Optical Pump Working Mode Continuous laser Working Voltage 3~3.7 V Spot Mode (Spot size) 6M less or equal 1.0mm Battery Configuration 1 x 16340 or 1 x CR123A Functions Tact Switch / tail safety lock; Adjustable focal length point-like spot continuous output; Tail with keys; Focus and patterns adjustable; Great for home long distance indication and outdoor hiking use. Packing List 1 x Flashlight 1 x Strap 1 x CR123A battery 1 x Charger (100~240V / US plug)