SUNKINGDOM 60W 2-Port DC USB Solar Panels Portable Charger with High-Efficiency Foldable Solar Panel Charger PowermaxIQ Technology Compatible Laptop,12V Battery, Phone,Camera, and More High Efficiency: The power conversion rate is up to 23.5%, 60 watts of full power, providing enough power to charge 2 devices simultaneously More compatible: 5V USB and 18V DC dual output are compatible with most electronic devices, 5V USB output interface can identifies device charging current automatically to achieve quik charging Automatic restart: Sometimes the sunshine may be obscured by sudden, clouds or forests. The solar charger will restart automatically when the sunlight is strong enough. Portable: Ultra-light weight (3.3 lbs.) and ultra-compact (unfolded size: 64.5 x 15.3 inches) for outdoor activities such as camping, hiking, fishing Highly durable: Made of industrial strength PET polymer fabric for durability