Multifunctional headlamp with 600 lumens brightness, C-Type USB charging. - Brightness: High Mode: 10W (approx. 600 lumens), Normal Mode: 3W (approx. 300 lumens), 6LED Mode: 4W (approx. 400 lumens) - Battery Capacity: Built-in 600mAh large-capacity battery - Charging Method: C-Type USB fast charging - Illumination Time: High Mode: approx. 7 hours, Normal Mode: approx. 12 hours, 6LED Mode: approx. 10 hours, Eco Mode: approx. 30 hours, Red SOS Mode: approx. 64 hours Thank you for viewing.