摘要
The Ring Socket is a convenient and eco- friendly safety device. One feature of the socket is that it allows the user to specify af- ter how long the socket＇s electric current will be cut off. Users turn the ring of the socket to set the desired length of time. This helps us be eco-friendly and not leave equipment running when unnecessary. The state of any given socket＇s power use is shown on the LED indicator and encourages us to switch off plugs not in use.
