This is a bicycle light from CATEYE. I am selling it because I accidentally bought it. This USB rechargeable bicycle light has a brightness of 800 lumens and can be used for approximately 2 hours. - Brand: CAT EYE - Model Name: VOLT800 - Maximum Output: 800 lumens - Medium Output: 400 lumens - Minimum Output: 200 lumens - Battery Type: USB rechargeable - Weight: Approximately 131g - Usage Time (Maximum): Approximately 2 hours - Usage Time (Medium): Approximately 3.5 hours - Usage Time (Minimum): Approximately 7.5 hours