http://www.htpow.com/high-powered-30000mw-blue-laserpointer-445nm-worlds-brightest-p-1027.html 30000mw Laser Pointer creates a beam of strong blue light sending out from the laser ,Wholesale Cheap ,High quality. Technical specifications Wavelength: 445nm Output power: 30000mW Laser class: class 4 Range in darkness (m):8000m - 10000m Operating Temperature (℃): -10 ~ 40 Storage Temperature (℃): -10 ~ 45 Body material: Aerospace Aluminum Dimension (L x D, mm): 190mm x 23mm Power supply: 2 x 16340 battery Warranty time : 12 months