Highly Eiificient/Uperior DurablityPremium 60W portable solar panel with an energy conversion efficiency of up to 24%, Industrial-strength PET polymers and rugged polyester canvas provide lasting durability to protect against unpredictable weather conditions. Optimized ChargingFlexSolar solar panels Built-In QC3.0 USB-A(5V-3A/12V-1.5A) , USB-C (5V-3A/12V-3A/20V-3A) And 20-28V DC Max 60W outputs to directly connect and charge phones or power station and other devices.The panel build-in smart IC chip intelligently identifies your device, and maximizes its charging speed while protects your devices from over charging and overloading. When the red light is on, it is working can charge device.