The Dorcy Motion 3AAA LED Headlamp can be used in regular on/off mode or used in motion sensor mode with a simple wave of the hand. The motion sensor feature is perfect for when you have wet, oily or gloved hands. This lightweight and compact headlamp features a washable adjustable head strap, a pivoting head for directional lighting and a padded rear battery pack for comfort and minimal frontal weight. On high, the light features 200 lumens, a maximum beam distance of 78 meters and a run time of 4 hours 30 minutes. On low, the light offers 65 lumens and a continuous run time of 12 hours.