The g30 focus beam led torch has an impressive light output of 121 lumens coasts pure beam focusing optic system with twist focus provides superior beam consistency from spot to flood with no dark rings typically associated with focusing torches a lightweight aluminum casing offers great durability and will hold up to heavy daily use tested and rated to ansifl1 standards by an independent laboratory pure beam focusing optic twist focus121 lumen output2 hour runtime146 meter 478 ft beam distance2