The PSW 4000 VA CP ECO is an energy-efficient pure sine wave inverter engineered to deliver powerful and reliable backup power for homes, offices, and commercial spaces. With a 4000 VA capacity, it smoothly supports heavy-duty appliances and multiple devices such as air conditioners, refrigerators, lights, fans, and electronic equipment while safeguarding them from voltage fluctuations and unexpected power failures. Its ECO mode optimizes energy consumption and ensures clean, stable output for consistent performance and longer equipment life.