Low power (under-voltage) will certainly damage any refrigeration appliance’s compressor.The fridge guard protects your appliance by disconnecting the power when it goes below unacceptable level. Additionally, there is a delay when power returns to normal this reduce chances of fridge and tv being damaged due to excess power flow. This will ensure that the appliance is not switched on-off repeatedly during fluctuations nor is it subjected to a massive surge normally experienced when power returns after power cuts.Order for this LinierFridge Guard with free 4 way Heavy Duty Power Extension Features: High and Low Voltageprotection Lightning protect 5 Amps durable