This Dorcy C.O.B. headlight is an amazing gift for those who work hard! This has broad beam technology with smooth edge-to-edge illumination for 9 square meters, and features 17 hours of continuous burn time. Other features include a black polyester-yarn elastic head strap, a weather-resistant 165-degree swivel mechanism, three replaceable AAA batteries, and the ability to fit on any hard hat. It's also great for remaining visible on a bike ride or a run after dark.