Can a voltage stabilizer protect against power outages?

A voltage stabilizer is designed to maintain a consistent voltage level to your appliances despite fluctuations in the incoming power supply. It protects your devices from damage caused by undervoltage, overvoltage, and voltage spikes.  

However, a voltage stabilizer cannot protect against a complete power outage. When the power goes out, there is no electricity flowing, and therefore, a stabilizer has nothing to regulate.

For protection against power outages, you would need a device with battery backup, such as an Uninterruptible Power Supply (UPS). A UPS provides temporary power when the main supply is interrupted, allowing you to safely shut down equipment or continue using it for a limited time.  

Some high-end UPS systems may also include voltage regulation features, offering protection against both voltage fluctuations and power outages.  

In summary:

• Voltage Stabilizer: Protects against voltage fluctuations (undervoltage, overvoltage, spikes) but does not provide power during an outage.  
• UPS (Uninterruptible Power Supply): Provides battery backup during a power outage and may also offer voltage regulation.  

For comprehensive protection, especially for sensitive electronic equipment, consider using a UPS, particularly in areas prone to both voltage problems and power outages. A voltage stabilizer is beneficial in regions with frequent voltage fluctuations but will not help when the power is completely cut off.   Sources and related content