Specifications:

continuous power 4000W
Surge capability: 8000W 
Input voltage : 20-25VDC
Output voltage and frequency
100/110/120 VAC  60±2% HZ 
220-240V AC  50±2% HZ 
Output waveform: modified sine wave 
Efficiency: >85% 
Low input voltage protection
Low input voltage warning 
Packing:

color box
carton size/weight:61*56*24cm/18/17kgs/2pcs/ctn