... transformerless inverters with high efficiency. With aluminum housing, Integrated interface system, they are light and handy, making installation easier. They are ... -accuracy clock: records real-time information accurately;(4) With system-level thermal simulation technologies, to make sure of product’s ... 3-2:3,EN61000-11:12Maintenance5 years,(10 years Optional) Grid-tied Solar Inverter(10KW,12KW,15KW)