The WL-S2 accepts four different battery types depending on your preference. Fully charged, its beam shines up to 918 feet, thanks to the CREE XP-L LED and mirror-finish reflector. The WL-S2 also comes equipped with both a tail-cap switch and a side switch, giving you quick access to five brightness levels and two preset modes (SOS and strobe)—allowing for several custom lighting combinations. On the lowest output, the WL-S2 can last up to 1500 hours.