Black 5000lm 2x Cree Xm-l T6 LED Head Front Bicycle Lamp Bike Light Cycling MTB Outdoors Torch Lamp Pack Emitter Type:CREE XM-L 2xU2 LED LED Life:50,000 hours Max OutputOutput bright can come to max 5000 lumens [lm] Modes operated by PUSH button 3 switch modes:Weak Brightness,Normal Brightness,Strong Brightness (not including batteries pack and charger!!) Hard-Anodized finish; Anti-abrasive, free-scratch, shock-proof.Battery Configurations: 4x 3.7v 18650