Everlite Solar Charged Headlamp 5 LEDs provide 40 lumens of output light in bright mode, and the headlamp weighs only 2.0 oz. Lithium Ion battery that provides 12 hrs or more of LED light as well as overcharge protection Optional accessories are available that allow cell phones and portable electronic devices to be charged from the DC Jack 2X5 inch solar panel charger comes with a 3 foot charging cord 5 sequence switch settings include bright, medium, low, flashing and off