LEYSHIZ Solar Powered Led Light Bulb Portable Led Solar Lamp Spotlight with 0.8w Solar Panel for Outdoor Hiking Camping Tent Fishing Lighting with Micro USB Charging port for Indoor Charging The solar panel is fixed to the roof or sunny place, the line into the house, and put the plug in the socket interface for charging (also can charge the battery by 5-8V charger) Lamp using high-performance lithium battery, the service life is 6-8 times of lead-acid battery Applicable to family, office, camping, outdoor activities, mainly in lighting and mobile phone and other digital products charge Lithium Battery Capacity: 750ma/3.7v : Lumens: 150 lumens (equivalent to a 2W light bulb) Can be charged using Multi Charger; http://www.amazon.com/dp/B01FJPGDVK