... CE,ROHS,FCC 4.Warranty:1 year Portable Solar Generator1. Handiness, portability, waterproof designs2.eco- ... circuit, overload,overcharging, overdischargingSpecification of 20W portable solar generator: Part NameItemTechnical DataSolar Power ParametersMax Output18V 20W ... Max Current1.1A Voltage22.5V ± 10%ControllerController Power12V 8A ...