KINGSOLAR&trade; Highest Efficient 60W Foldable Solar Panel Portable Solar Charger Dual Output (USB Port + DC Output) HIGH EFFICIENT:Constructed with 60 watts sunpower panel,the power conversion rate increases up to 23.5%,providing enough power to charge 2 devices simultaneously MOST COMPATIBLE:5V USB and 18V DC dual output are compatible for most electronic devices,the charger can automatically identify the current of your equipment and speed up the charge process AUTOMATIC RESTART:Sometimes the charging is interrupted by the sudden shade,cloud or forest, this Solar Charger will automatically restart charging when the sunlight is strong enough Highly Portable:Ultra lightweight (3.3 Ib) and ultra compact (15.3x 11.8x 2.5in folded or 64.5x 15.3in opened),east to carry for outdoor activities such as camping,hiking,fishing Superior Durable:Industrial-strength PET polymer fabric to withstand rugged attrit for outdoor use.Exposure to damp conditions will not damage the exterior part of the solar charger