The GoodWe Smart DT Series of inverters are specially designed for three-phase rooftop systems, the power range of 12kW, 15kW, 17kW, and 20kW are ideal for small commercial usage. the integrated two MPPTs allow two-array inputs from different roof orientations. The SDT series inverter is small, light, and easy to install. Suitable for both outdoor and indoor installations, this inverter offers a quiet operation due to its fanless, natural convection cooling