Genuine Ziewnic solar hybrid inverter, AXPERT ULTRA (PV10000), for home and commercial backup power. Key specs: Rated Power: 8000VA/8000W. Parallel Capability: YES, 6 units. Voltage: 230 VAC. Selectable Voltage Range: 170 – 280 VAC (For Personal Computer). Frequency Range: 90 – 280 VAC (For Home Appliances). AC Voltage Regulation(Batt. Mode): 230VAC ± 5%.