Yes, in most cases, you would need an inverter with a compressor to cool the fridge properly while using it in inverter mode only during a power failure. Let me explain why:
Traditional Fridges: Standard refrigerators (non-inverter refrigerators) work on a simple on-off mechanism. When they are connected to the power source, the compressor runs at full speed until the desired temperature inside the fridge is reached, and then it shuts off. When the temperature inside the fridge rises again, the compressor turns back on. This cycle repeats, leading to fluctuations in temperature.
Inverter Technology: Inverter refrigerators, on the other hand, use advanced inverter technology in their compressors. Instead of running at a fixed speed, the inverter compressor can adjust its speed according to the cooling requirements. When the cooling demand is high (e.g., after opening the fridge or during hot weather), the compressor runs at a higher speed. When the cooling demand is low, the compressor slows down.
Efficient Cooling: This variable speed operation of the inverter compressor leads to more efficient cooling and a stable temperature inside the fridge. The temperature fluctuations are minimal compared to traditional fridges. Additionally, inverter compressors are generally quieter and more energy-efficient.
Inverter Mode During Power Failure: Some inverter refrigerators have a feature that allows them to switch to "inverter mode" during a power failure. When the power goes out, the fridge can draw power from an external inverter (like a home inverter system or a UPS) to continue operating with the benefits of the inverter compressor. This ensures a more stable and consistent cooling performance even during power outages.
So, if you want to cool the fridge properly and maintain a stable temperature with minimal fluctuations, an inverter refrigerator with an inverter compressor would be the better choice. And if you want to use it during power failures, you can connect it to an external inverter to continue benefiting from the inverter technology.