Cree LED 1800LM XM-L T6 Flashlight Torch Zoomable Tactical Lamp 3 AAA or 18650 battery Cree XM-L T6 Led Bulb, Lamp Life: Over 100000 hours or more Material: High Quality Aluminum Alloy, Powed by: 1 X 18650 or 3 AAA battery(Not Included) Switch: Press Tail on/off, 5 modes: High/Mid/Low/Strobe/SOS Len can be stretched to adjust its focus Waterproof design, A perfect item for outdoor sports