A compact headlamp that uses one AA battery, providing 60 lumens of brightness and 60 hours of continuous illumination. - Brand: mont-bell - Model: Compact Head Lamp - Battery Type: Uses one AA battery - Brightness (High): 60 lumens - Brightness (Low): 17 lumens - Continuous Illumination Time (High): 60 hours - Continuous Illumination Time (Low): 72 hours - Weight: 46g I purchased this but have no use for it, so I am selling it. Please consider purchasing it if you are interested.