output reaches to 1000 lumens; powered by ICR18650 x 1 lithium rechargeable batteries; 3 modes power setting: Mid (3H), Hi (1.5H), Strobe (6H) with very unique and reliable mechanical button switch, allowing one-hand operation while providing reliable and safe switching; 8 beam angles make the beam length up to 300 meters; durable anti-corrosive high grade aluminum alloy with hard anodized surface and lanyard is included.