EG4, FlexBOSS21, 16kW AC Hybrid Inverter, 21kW PV Input, , 16kW On-Grid AC Output, 60HZ, 48VDC, 120-240Vac Split-Phase, 3 MPPT PV Inputs, 600VDC Max, Built-In RSD, NEMA 4X, 10 Year Warranty, EG4INV240V50AFLXBOSSV2