*Crystalline solar panel (Sunpower solar panel is optional) *Panel Optional (3.5W x 2 = 7Watt, 3.5W x 3 = 10Watt, 4W x 5 = 20Watt) *Fabric bag with water proof *Built in converter directly to charge your cell phoe *5.0v output with USB surface x 2 *Easy to operation, environment friendly to get free energy from sunshie directly *Enjoy with your travel or emergency use