Features : Beam distance:200 meters Brightness:500 lumens LED:CREE XPG2-S3 LED Battery:1*CR123A+1*CR2 Green laser Wavelength: 532nm Red laser Wavelength: 650nm SIZE:26*53*79 mm Can adjust Gun light groove size:20.5mm-21.5mm Apply to the environment:Daily carry,burrowing,camping,patroll,Hunting Loose the button can adjust the groove with,make it fit more types pistols Before purchase ,have better to contact us to tell your gun type and size Package List: 1* Handgun Light 1* 1*CR123A+1*CR2 Battery .