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This is a concealed socket. When user want to use it, just push the front of the socket, the socket will slide out. When the socket slide in the position, LED will be lighted, its also mean the power is turning on. Each cube has four sockets, combine with the extended line.
This is a childproof socket, because theres no socket in the front of the cube. When user push back the socket, LED will be snuff out. To remind user to save energy, turn off the unused electric equipment power. In the night, LED can also remind users to avoid collide with their foot.
CHANG GUNG UNIVERSITY
Tao Yuan, Taiwan