Stop Watt Energy Saving Device - Pro Power Saver uses innovative technology to detect and analyze the power consumption of devices, helping to reduce electricity costs by regulating voltage, balancing current and providing surge protection, reducing the electricity used, extending the life of the appliances. Almost No Extra Consumption - Upgrade Power Saver can stabilizes voltage, balances current, and provides surge protection to achieve power-saving effects. The device itself consumes almost no energy, so you can use it to save power consumed by appliances like refrigerators, air-conditioners, and televisions. It won't increase your electricity bills, even if it runs 24/7. Reliable and Safe - Power-saving box works under rated load, use of a capacitance system to store its electric energy more smoothly released to normal, with no peak, and the power saver shell with advanced fireproof and explosion-proof materials, internal leakage protection measures, safe and reliable. Easy To Use - The power saver plug is very easy to use, just plug the power factor energy device into a power socket and the green indicator light will be bright, then starts to work by keeping the device connected. No need special attention or maintenance. Wide Compatibility - Upgraded saver Watt is compatible with a wide range of appliances, including air conditioners, washing machines, refrigerators, water pumps, induction cookers, electric kettles, and more.