4 Pack Stopwatt Smart Power Device, Stop Watt Plug-in for Home & Office, US Plug 90V-250V Up to 30KW, Voltage Stabilizer,

1. Safe and Durable Made of high-quality material, safe structure, stable performance and long service life. | 2. Wide Compatibility Compatible with most home appliances such as air conditioners, refrigerators, washing machines, TVs and other devices. | 3. Safe & Reliable Adopts fireproof and explosion-proof housing, built-in leakage protection and safe circuit design. | 4. Easy to Use Plug-and-play design, just insert into socket, green light indicates working. No complicated installation needed. | 5. Stabilizes Voltage & Protects Appliances Helps stabilize voltage, reduce power fluctuation, and works well for both large appliances and small electronics