... 110VAC,220VAC,240VAC DC Intput Voltage: 12/24/48VDC Wave Form: Modified Sine Wave Frequency: 60Hz/50HzEfficiency:≥ 88% Working ... ; etc. 2) industrial equipment series: solar, wind power and metal-halide lamp, etc. 3) office: computer, printer, duplicator, scanners, ... ; etc. 2) industrial equipment series: solar, wind power and metal-halide lamp, etc. 3) office: computer, printer, duplicator, scanners, ...