Tektite continues in the development of LED flashlights with the Excursion LS4 . 240 lumen LED flashlight provides a battery burn time is more than 10 hours with 10 additional hours of usable light, plus you'll never change bulbs again because LEDs are nearly impossible to break and last more than 10,000 hours. Special narrow beam optics allow the LS4 to cut through smoke and fog with ease. Comes with a cushioned wrist lanyard.