EcoVolt 1550 is a pure sine wave Home UPS. It has features like intelligent water level indication which helps track battery water level without any hassle. The low harmonic distortion makes this Home UPS practically noiseless and the pure sine wave output makes it highly efficient and helps save on electricity bills. Along with this inverter RC25000 200Ah bakes a great combo. The economical range of tubular UPS batteries with high performance, made using rugged tubular plates. These batteries require minimum maintenance and withstand long and frequent power cuts.