SUNYOU SK98 Adjustable Focus Zoom UltraFire CREE XML-T6 LED 1200LM 18650 Battery 4.6IN Waterproof Flashlight Torch 3-Modes SUNYOU SK98 Adjustable Focus Zoom UltraFire CREE XML-T6 LED 1200LM 18650 Battery 4.6IN Waterproof Fl Modes: 5 modes, High / Middle / Low / Strobe / SOS (slightly click the tail cap to sellect) Power supply: 1 x 18650/26650 Rechargeable Li-lithium Battery or 3 x AAA batteries (Not Included) Suitable for hunting, cycling, climbing, camping and outdoor activity etc