... .60%;(2) With dual MPPT. Suit-able for installing solar modules with different angle of dip;2.Safe(1) IP65 ... circuit protection , Over temperature protectionDisplay and CommunicationDisplay3.5inches, LCD displaying , support backlit display and night displaySystem languageEnglish , German , Italian , French and ... ,EN61000-11:12Maintenance5 years,(10 years Optional) Grid-tied Solar Inverter(4KW,5KW,6KW)