Cree TK27 160lm LED Wearable Adjustable High Power Headlamp Cree LED light lasts more than 100,000 hours 170m beam range with 160 lumen output Lamp head swivels 90 , Lightweight adjustable headband LED light features: High/Low setting, Fast strobe setting, Twist to zoom focus or expand Powered by 3 AAA batteries (not included)