Model of LED: CREE XM-L T6 LEDOutput brightness : Can come to above 4000 lumens [lm]Life span:100，000 hoursWaterproofing designMaterial: High quality 6061T AluminiumModel of Battery required: 1 x 18650 3.7v or 3 x AAA BatteryFlashlight size: 13.0cm(height) x 3.4cm (diameter)Weight : 200g 5-mode adjustable Brightness: High/Mid/Low/Strobe/SOSDaily waterproof， use it in rainy day， no problem.Adjustable Focus: can adjust its focus for different usage .Internal wiring applies the high efficient booster circuit， working voltage is wide and can utilize the batteries in the largest extent. Package Included: 1 x CREE XM-L T6 LED Zoomable Flashligh Torch1 x 18650 battery Holder1 x Adapter for 3 x AAA battery1 x 18650 Battery Charger 1 x Ultrafire 18650 6800mAh Rechargeable Battery