Zebralight SC62 18650 Flashlight Cool White w/Olight 3400 mAh 18650 Rechargable Battery and D2 Charger Battery capacity indicator (LED flashes 1-4 times, 4 short clicks to start) Automatic stepping down from High to Medium, and from Medium to Low when battery capacity is low Smart user interface provides fast and easy access to all brightness levels and beacon-strobes. Tempered optical grade glass Waterproof to IPX7 (2 meters, 30 minutes)