Features:Producing a ultra bright beam of light by CREE XM-L XML T6 LED.Output bright can come to 2000 lumens.3 modes: High / Middle / Flash.Zoom In/ Out to adjust its Focus.Tilt adjustment.Adjustable and elastic headband.Waterproofing design.Aluminum alloy casing.Wide usage such as biking， camping， backpacking， hunting， fishing， emergencies and home repairing， etc.Specifications:Model of LED: CREE XM-L T6Lumen:2000LMPower supply:2*18650 (not included)Switch Type: Button (On， Off and mode selecting)Material: Aluminum alloy & PlasticItem color: BlackItem size: 8.4 * 5.6 * 5.2cm/ 3.31 * 2.2 * 2.05inItem weight: 220g/ 7.75ozPackage size: 12.5 * 10 * 9.5cm/ 4.92 * 3.94 * 3.74inPackage weight: 265g/ 9.34ozPackage includes:1 * Headlight