Features: Water resistance design Aluminum alloy casing Aluminum alloy reflector Model of LED: CREE XM-L T6 Output bright can come to max 1800 lumens [lm] Internal wiring applies the high efficient booster circuit- working voltage is wide and can utilize the batteries in the largest extent Adjustable base is provided for each head lamp- with back and forth inclination 3 Switch Modes: Strong Brightness / Normal Brightness / Flashing Model of Battery required: 2 x 18650 battery (Not Included) Colour : Black Dimension : 38mm Package Included: 1 x CREE XM-L T6 LED Rechargeable Headlamp