Leatherman 831062 Serac 2-LED Flashlight Lumens range from a high of 35 to a low 5 Run time lasts on high at 45-minutes and low at 10.5-hours Housed in 6061-T6 hard anodized aluminum with bezel made from stainless steel Humidity resistant, corrosion resistant, shock resistant, and power management circuitry provide steady light output Accepts AAA batteries