1.Compact and lightweight design for ease of installation 2.Transformer-less technology with maximum efficiency over 97.4% 3.Aluminum housing with IP65 industrial protection against harsh environment. 4.High reliability with full protection functions. 5.Wide range of DC input and MPPT voltage. 6.Integrated DC switch for PV panel isolation. 7.Certified grid-connection operation according to local standards. 8.RS485 and optional of Ethernet/USB/Wireless communication. 9.Non-fan design