New Delhi, Nov. 27 -- Many homes today rely on an inverter or UPS to keep essential appliances running during outages. These systems shift to battery mode the moment the main supply fails, keeping lights, fans, and basic devices powered. During normal supply, the inverter simply passes incoming voltage to your wiring without regulating its stability. This means the electricity that flows into your home still carries the same degree of fluctuation, spike, or drop from the main line. Most inverters and UPS units are designed for backup power, not active voltage correction. Their role is continuity, not protection. So even if you have a high-quality inverter installed, it does not shield your appliances from sudden surges that occur while th...