... inverter 1.Off-grid solar inverter 2.8-year warranty 3.TUV,UL,IEC,VDE certificates 4.Frequency 50/60HZ 1500w Pure sine wave inverter, 1.5KW-6KW Solar Inverter ... strictly with the IEC61215, ISO9001, UL, TUV, CE and so on quality standards. Model1500W2000W3000W4000W5000W6000W InputRated capacity(W)1500W2000W3000W4000W5000W6000WCommercial Power range(VAC ...