Yueqing Sandi Electric Co.,Ltd is one of the leading China 1000 watt inverter manufacturers,Website:http://www.cnsandi.com, welcome to wholesale cheap 1000 watt inverter from our professional factory. Technical Parameters  SDH-1000W Function details: Model SDH-1000-121 SDH-1000-241 SDH-1000-481 SDH-1000-122 TE-1000-242 SDH-1000-482 Rated Power 1000W 1000W 1000W 1000W 1000W 1000W Max. Continuous Power 2000W 2000W 2000W 2000W 2000W 2000W DC input voltage 12V 24V 48V 12V 24V 48V AC output voltage 110VAC 220VAC No-load current 0.7A 0.35A 0.17A 0.7A 0.35A 0.17A AC output frequency 50Hz/60HZ AC output waveform Pure Sine Wave Waveform distortion THD<2%(Linear load) Efficiency >85% >88% >90% >85% >88% >90% DC input voltage range 11-15V 22-30V 44-60V 11-15V 22-30V 44-60V Low Voltage Alarm 10.5+/-0.3V 21+/-0.6V 41.8+/-1.2V 10.5+/-0.3V 21+/-0.6V 41.8+/-1.2V Low Voltage Shutdown 9.5+/-0.2V 19+/-0.3V 38+/-0.4V 9.5+/-0.2V 19+/-0.3V 38+/-0.4V Over Voltage Protection 16+/-0.5V 31+/-1V 65+/-2V 16+/-0.5V 31+/-1V 65+/-2V Low Voltage Recovery 11.8+/-0.3V 23.6+/-0.4V 47.2+/-0.8V 11.8+/-0.3V 23.6+/-0.4V 47.2+/-0.8V Over Voltage Recovery 15.7+/-0.3V 31.8+/-0.4V 63V+/-1V 15.7+/-0.3V 31.8+/-0.4V 63V+/-1V      Protective Function Low/Over voltage: LED  Red light, automatic recovery   Over load: LED  Red light, automatic recovery   Over temperature : LED  Red light, automatic recovery   Short circuit: LED  Red light, automatic recovery   Input reverse connection: Fuse burn-out Working Temp.  0℃-40℃ Storage Temp. Humidity -30℃-70℃ Dimension 480*240*140mm Wight 4.5kg