Fly Sunton 5pcs Electricity Saving Box Household Electric Smart US Plug(5pcs)

Feature: Save energy sources efficiently Stabilize the voltage and balance the current source Stand current waveform protect devices Smart sleek design with LED lights to indicate operation Prolong the life of electrical devices Easy to use maintenance free Earth friendly Specification: Power Supply/Rated Voltage: 90V~250V Rated Frequency: 50Hz/60Hz Working Temperature: -60~75 Degree Work Load:30000W Dimensions: Approx. 12 x 7 x 3.5cm How to Use: Plug the electricity-saver box into any free power cord/socket at home/office. Simple operation no need maintenance no need pay attention.