Streamlight 75716 Stinger LED Flashlight with AC/DC Fast-Charge PiggyBack Holder, Black Machined aluminum case with non-slip rubberized comfort grip Lens: Unbreakable polycarbonate with scratch-resistant coating 3 Watt super high flux LED, impervious to shock with a 20,000 hour lifetime Runtime: High beam: up to 1.75 continuous hours; Medium beam: up to 3.5 continuous hours; Low beam or strobe: Up to 6.75 continuous hours 8-1/2-Inch length