Description: This product protects the appliances and prolong their life, especially great for air conditioning, TV, computers, etc. It can stabilize the voltage and current, reduce the invalid current online the loss on the road, saving electricity effect. Features: Provide stable voltage and balanced electricity to achieve power saving, thus extending the service life of the electrical product. Products with resistance to convex , protection of electrical appliances. It can be used for 24 hours, 365 days and all-weather conditions. Balance the current, improve the use of electrical appliances power, avoid the waste of electricity. Suitable air conditioning, washing machines, refrigerators, electric fans, TV, lamp, etc. Applicable for ordinary families, bars, hotels, companies, shops, small factories, etc. Specifications: Condition: 100% Brand New Material: Metal Working Voltage: 90-250V Working Frequency: 50-60Hz Effective Range: 300000W Energy Saving: 30-40% Plug Type: US Plug Product Size: Approx. 90 * 45 * 30mm / 3.5 * 1.8 * 1.2" Package Weight: Approx. 1.9kg Package Included: 1 X Energy Saver Device 1 X Power SupplyApplicable for ordinary families, bars, hotels, companies, shops, small factories, etc. Balance the current, improve the use of electrical appliances power, avoid the waste of electricity. It can be used for 24 hours, 365 days and all-weather conditions. Balance the current, improve the use of electrical appliances power, avoid the waste of electricity. Provide stable voltage and balanced electricity to achieve power saving, thus extending the service life of the electrical product.