DetailsBlaze .5wt + Superflash:~ Blazeª features: LED is many times brighter than a standard white LED. Up to 100 hours of run time on 2 AA batteries (included). SuperFlash features: Half-watt LED plus 2 eXtreme LEDs for visibility up to 1 mile. Unique, eye-catching flash pattern. Up to 100 hours of run time on 2 AAA batteries (included).