2-mode: 80lm mode and 600lm mode and fast strobe; Comes with rechargeable lithium battery and charging cable; Built-in recharging circuit; It means full charge as the indicator light from red to green; The charging port is on the top of the flashlight with protection ring waterproof and dustproof; Tail forward clicky switch quickly light turn on / off adjust brightness and fast strobe; Waterproof rate: IPX8 (supports underwater up to 2 meters); Tempered glass and double sides coating antireflection coating; Lightweight aviation aluminum alloy 2-level oxidation treatment surface; With strap hole; Comes with 2600mAh rechargeable lithium 18650 battery (with protection PCB); You use your own 18650 battery (but does not supports charging via USB)