WindFire&reg; 3 X CREE XM-L T6 L2 4 Modes 5000Lm Headlamp Adjustable Base 18650 Rechargeable Lamp Headlight Bicycle Light with AC/DC Charger and USB Interface Supports 3 Charging Ways(DC Car charger/AC /USB) & Supplies Power for CellPhones Tablet 3 X CREE XM-L T6 L2 LED makes the brightness reach up to 6000lm. Intelligent circuit control,4 switch modes: High, Medium, Low, Strobe. Aluminum alloy casing, waterproof design, Model of Battery required: 2x 18650 3.7v (not Included) ) With AC charger interface and USB standard interface, very convenient for you travelling, camping Suitable for all kinds of outdoor activities like camping, hiking,climbing,fishing, night walking