Specifications: Brand New Green Laser True 10000mw Output Specail feature : the green laser spot size is adjustable， the range is from 0 to 60mm Keylock switch to prevent mis-use by other people It can be operated by One 16340 battery or One 18650 battery Extremely Visible green light beam in the dark Range in excess of 6，000 ft Power saving， compact and reliable Max Output: <= 10000mW Wave Length: 532nm Output wave: Continuous wave Power by 1x 18650 Battery (not including ) Length: 5.77 \" Diameter: 0.9 \" Weight: 3.5 oz Package include: 1 laser pointer 2 Safety lock key