... :CE,ROSH,Beijing Test Report Mono-crystalline solar panelYLT220-YLT250 Technical Paramenters:ModelYLT250YLT240YLT230YLT220Voc(V)59.759 ... and SocketSolar Cell125mm*125mm Mono-crystalline Silicon Solar Cell 125mm*125mmType of Solar CellType PNo.of Cells and Connections96 ... ,Beijing Test RrportApplicationsLarge and Medium-Sized Solar Power Station, Household Solar Power System, etc solar panels-220