Sako sunpolo-king 4.2kva/4200w hybrid solar inverter is a powerful 24v solar energy solution for homes, offices, businesses and off-grid applications. it has a 4200va/4200w rated output and supports a 24vdc battery system with 200a dc input. ac output is 230vac, 50/60hz, single phase, while ac input is 230vac, 50/60hz. the built-in mppt solar charger supports up to 5000w pv array power, with maximum pv input current of 27a. mppt voltage range is 120–430vdc, minimum solar voltage is 120vdc and maximum solar open-circuit voltage is 450vdc. maximum solar charging current is 120a. supports sako or pyl bms communication, ip21 enclosure and -10°c to +55°c operation. 3-year warranty.