The Coast EAL20 LED Lantern is the latest addition to our line of durable and reliable emergency use lights. Its 9 high-quality LED's provide incredible brightness and energy efficiency, giving you up to 100 hours of runtime on one set of (4) D cell batteries (not included). Choose between flashing red, solid red, area light, and energy saving modes; or select your preferred light level with the built-in dimming switch.