Teleone Digital Power Saver uses a state of the art electrical technology to actively monitor & improve the power factor of your household / office appliances . In addition , the intelligent technology optimizes the voltage & current demands thus reducing the active power / KwH demands & achieves up to 40 % savings on your electricity bills. It also acts as a voltage stabilizer by storing energy for upto 10 seconds and i.e. supplies the load with constant voltage during momentary power surges. This in turn results in longer life span of your electrical appliances .