WindFire 3X CREE XM-L T6 U2 4 Modes Super Bright 5000Lm Headlamp with Adjustable Base Cree LED Lamp Headlight Bicycle Light with AC Charger and 2 x WindFire 4000mah 18650 Rechargeable Batteries for Camping, Hiking, Climbing, Cycling, Travelling 3X CREE XM-L T6 U2 LED makes the brightness reach up to 5000lm. Intelligent circuit control, 4 switch modes, 1x Cree T6/ 2x Cree XM-l T6/ 3x Cree XM-L T6/ Flashing Model of Battery required: 2x 18650 3.7v (Battery Included ) Aluminum alloy casing, waterproof design, long service life Suitable for all kinds of outdoor activities like camping, hiking,climbing,fishing, night walking