The coast eal20 led lantern has 9 high quality leds which 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 features light output max up to 375 lumen runtime up to 100 hour light output control coast light dial battery life indicator built in to light dial handle