Stopwatt cleans the electricity in your home and reduces unnecessary energy consumption. Stopwatt helps maintain voltage, synchronize current, and supports energy efficiency. The design is advanced, but no technical knowledge is required for operation. Improves equipment performance and reduces electrical interference. Stopwatt helps protect electronic devices, enhances audio and video signal clarity, minimizes interference in wireless communication, and increases the reliability of electrical systems. Enables comfortable living by supporting energy savings without reducing the use of essential appliances. Continue using refrigerators, fans, air conditioners, and other necessary devices while helping to lower electricity costs. Easy to use: simply plug the device into a wall socket. The green indicator light confirms operation. No maintenance or additional attention required. Helps improve power utilization and reduce wasteful energy consumption. Suitable for multifunctional use in homes, shops, restaurants, offices, and small factories. Compatible with air conditioners, washing machines, refrigerators, electric fans, pumps, stereos, fluorescent lights, and other common electrical devices. Plug Type: US Plug, suitable for use in Canada, Mexico, Thailand, Taiwan, the Philippines, and other regions with compatible outlets. Voltage: AC 110V Color: White Material: Plastic Package Contents: 5 x Stopwatt Energy Saver Note: Light reflection and differences in display screens may cause slight variations between the color shown and the actual product. Measurement may vary by +/- 1-3 cm.