Z-Home A100 Cree XM-L T6 2000 Lumen Zoomable and Waterproof LED Flashlight.5 Modes CREE XML-T6 LED Flashlights, Water Resistant Camping Light for Outdoor Sports, Use AAA 3 Batteries or 18650,Black Cree XM-L T6 2000 Lumen XML LED Light Zoomable led flashligh Waterproof Flashlight Adjustable focus range for different usage, stretching to adjust its focus 5 switch modes: high / medium / low / strobe / SOS Skid-proof and water resistant design, best suitable for Outdoor Camping, Climbing, Cycling, etc Power Source: 1 x 3.7V 18650 Battery or 3x AAA battery (Not Included)