Package Contents:1 X CREE XM-L T6 Rechargeable Headlamp1 X AC Charger to suit your country(US or EU)1 X Car Charger1 X 18650 Battery Dual Channel Charger  Base4 X 18650 3.7V 4200mAh Rechargeable BatteryFeature: Rechargeable Headlamp: 1.CREE XM-L T6 Headlamp 2.Model of LED: 1* CREE XM-L T6 + 2*  XPG-R5 3.Output bright can come to max 5000 lumens [lm] 4.Internal wiring applies the high efficient booster circuit， working voltage is wide and can utilize the batteries in the largest extent 5.Waterproof design(NO DIVING) 6.Adjustable base is provided for each head lamp， with back and forth inclination 7.One button switch : 1x Cree XM-L T6/ 2x Cree XM-l T6/ 3x Cree XM-L T6/ Flashing 8.Model of Battery required: 2x 18650 3.7V Battery 9.Color: Black 10.Dimension : 83 x 37 x 58mm 11.Weight : 219g