Comprehensive Voltage ProtectionThese voltage protectors are designed to safeguard your appliances from high voltage, low voltage, power fluctuations, surges, outages, and sudden load changes. They help prevent damage to electronics caused by unstable power supply.Premium Flame Retardant MaterialThe appliance surge protector is made of high quality PC material. It makes our refrigerator surge protector more durable and fire resistant. ETL Listed.Delay Time NoticeWhen the voltage exceeds 140V or drops below the set threshold (adjustable between 90105V), the red indicator light turns on, indicating that power has been cut to protect the appliance; Once the voltage returns to a safe range, the yellow indicator light turns on, and a 3-minute delay begins; After the delay, the green indicator light turns on, signaling that power has been safely restored and the appliance can operate normally.Wide CompatibilityThese voltage protector are suitable for a variety of household devices, including refrigerators, air conditioners, washing machines, and computers. They offer reliable protection for essential electronics and ensure safer, more stable operation.Adjustable Voltage RegulatorAdjustable minimum voltage cutoff threshold from 90 to 105 volts, allows adjustment of the minimum voltage threshold based on local power conditions to prevent frequent shutdowns caused by voltage fluctuations, reducing wear and extending appliance lifespan.