Energy Products, Projects and Devices Design SL4-6KRG Inverter PV Grid Connected Inverter by Slenergy Technology (A.H.) Co.,Ltd. SL4-6KRG is a photovoltaic grid-connected inverter made for homes and businesses. The integrated body uses rounded corners and a white-gray glossy surface for a minimalist appearance. The sealed structure provides IP66 protection against water, so the inverter can be installed indoors or outdoors in three simple steps. A concise LED display shows real-time power and key data. A related application, connected by Wi-Fi or a 4G network, reports current power, daily generation and estimated revenue. Two MPPT trackers suit varied application conditions.