... & fan cooling CE JSM-12-3000 12V Modified DC/AC Square Wave Inverter Features:1.Modified sine wave output (THD<3%)2 ... %Rated power: 3000wPeak power: 6000wWaveform(THD): modified sine wave(<3%)Frequency: 60Hz ±0.3% or 50Hz ±0.3% ProtectionsLow voltage alarm ... : 12V, 24V, 48V2.AC Output voltage: 100V, 110V, 120V, 220V, 230V, 240V3.Frequency: 50Hz, 60Hz, 50Hz/60Hz(having frequency switch)4.Socket types ...