Duravolt 5000W TUB Stabilizer will help protect your home and office appliances from irregular voltage that could damage them. It has a delay mechanism which gives your appliances protection. You can set the stabilizer to delay for several minutes so your appliances do not come on immediately when there is erratic power supply. If your appliance is connected to this stabilizer, the voltage from public power will enter into the stabilizer and it will carry out any regulation that needs to be done before sending the power to the device.