Specifications:Brand New Green LaserTrue 10000mw OutputSpecail feature : the green laser spot size is adjustable， the range is from 0 to 60mmKeylock switch to prevent mis-use by other peopleIt can be operated by One CR123A battery or One 18650 battery{not include}Great for pointing objects from long distance， such as starsExtremely Visible green light beam in the darkRange in excess of 6，000 ftPower saving， compact and reliableCuts thin plastic (tested with thin plastic bags) Max Output: <= 50000mWWave Length: 532nmOutput wave: Continuous wavePower by 1x 18650 Battery {not include}Length: 5.77 "Diameter: 0.9 "Weight: 3.5 ozPackage: 1 X Green Laser pointer 1 X Safety Keys ( No Battery The charger box !) Warning: Do NOT point laser at people. There is danger of physical harm if beam is shined into the eyes.Children should only handle lasers under adult supervision.