Maglite ML300LX-S3RCC6 LED 3D Flashlight, Matte Black has a multi mode electronic switch with settings at momentary, full power, low power, ECO, and strobe. Beam distance is 406 meters. Advanced focus system allows you to adjust from spot to flood with less than 1/4 turn of the head. Activity based function sets include general, outdoor, law enforcement, and tactical. Runtime on high is 16 hours, low is 77 hours, and ECO is 117 hours.