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