UPS, pure sine wave 1.input voltage:12V/24V/48V 2.output voltage ... 3.continue power:1500W 4.output :low frequency 1.Output waveform:pure sine wave2.input voltage:12V/24V ... , TV, washing machine, fan, light, digital camera etc.1.4kw120W air-condition, DVD, VCD, TV, washing machine, oil ... current is low or high as the battery capacity. UPS power inverter --solar power ,low frequency inverter , pure ...