The SGQ-63 Self-Recovering Over/Under Voltage Protector is a new generation product developed by our company in response to market demand. This protector is well-designed and incorporates imported and domestic brand-name components, manufactured using advanced production techniques. It can quickly and reliably cut off power under high-voltage surges and under-voltage conditions, protecting household appliances. Once the voltage returns to normal, it can automatically reconnect the circuit and restore power after a delay. It effectively protects appliances from power surge impacts upon instant power-on. All functions are fully automated, requiring no personnel. It features bi-color LED indicators (Power: Green, Protection Indicator: Red).