Waveform, pure sine wave ultra power saving, anti-interference, ultra quiet design (imported Xi steel sheet), with strong load capacity, wide use voltage, with reverse connection, overvoltage, undervoltage, overload, over temperature protection. Suitable for load, electric fan, computer, mobile phone charging, monitoring equipment supporting, energy-saving refrigerator, air conditioner under 1.5 horsepower, rice cooker, freezer, washing machine, impact drill, polishing machine, water pump.