* Item title: Mastiff Z3 Zoomable Focus XM-L2 LED 1000 Lumens 1-mode Lamp Flashlight Torch * Model: Z3 * Color: Black * Material: 6061T aircraft Aluminum HA III hard anodized construction * Lens: Clear anti-reflective coating magnifying ABS lens * Lamp: XM-L2 white LED assembly * Brightness: Up to 1000 lumens( manufacturer rated ) * Run time: 2.5 - 6.5 hours( depends on battery capacity ) * Lifespan: Average 10,000 hours * Mode: On - off * Operating voltage: 3.2V - 4.5V * Power supply( NOT included ): 1 x 18650 Li-Ion battery or 3 x AAA 1.5V Alkaline batteries * Switch: End cap press on-off switch * Dimension( mm ): 121 ( length ) x 26( body ) x 34( head ) * Weight( g ): 104 * Rotate the flashlight head part to get zoomable light * Shock resistant, slip-resistant body design * A nylon lanyard, a plastic battery gap adaptor and AAA battery holder are included * Capable of standing up securely on a flat surface to serve as candle * Ordinary waterproof standard with O-ring sealed, splash proof, be OK to use in rainy days * Step down constant current driver, high efficiency with dual mode DC-DC regulator. Replace battery when the light goes dim