Stopwatt helps maintain voltage and synchronize current to support energy efficiency in your home. It is designed to reduce unnecessary energy consumption that can contribute to higher electricity bills. The device features a compact design and is simple to use—just plug it into a standard wall outlet, and the green indicator light will illuminate, indicating it is working. This energy saver may help improve the performance of electrical equipment by reducing electrical interference. It is suitable for use with various household appliances such as air conditioners, refrigerators, washing machines, electric fans, pumps, o systems, and fluorescent lighting. By minimizing electrical noise, it may enhance o and video signal clarity and support reliable operation of electronic devices. The Stopwatt is easy to install and requires no maintenance or special attention once plugged in. It works automatically to optimize power usage and help prevent inefficient energy waste. Ideal for homes, shops, offices, restaurants, and small factories, this device is compatible with standard 110V AC electrical systems. Plug Type: US Plug (suitable for use in countries including Canada, Mexico, Thailand, Taiwan, the Philippines, and others) Voltage: AC 110V Color: White Material: Plastic Package Contents: 5 x Stopwatt Energy Saver Note: The package includes only the items listed above. Light reflection and differences in display screens may cause slight variations between the color of the item in images and the actual product. Measurement may vary by +/- 1-3 cm.