... CREE XML T6 multifunction headlamp bicycle light 1000Lm, 1x18650, both for head and bicycle light TOP Quality CREE XML T6 multifunction headlamp ... ,3.7-4.2V/6400mAh,life time:100,000 hours,light time:120-240 minutes,1000LM/6500k,with elastic head band ... ,two size O-ring,modes: high-low-strobe,90°adjustable, color box 193x173x73mm