... structure, internal devices, such as batteries, controllers, inverters, chargers etc., fixed solid, more convenient for ... to the switch. Main technical parametersPortable Solar Power ProductsModel specifications NHPV4020 SeriesPolysilicon solar panel 2, ... , certificate 1.NW 14.89KGSpecificationsDescription Portable Solar Power Supply KitModelNHPV4020 SeriesSolar Panels2 pcsPoly-silicon solar panels ...