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Kids are frequently blamed for leaving lights on, but to be fair, it is because they seldom notice lamps and switches. The Tio Light Switch may be a nice gadget to remind kids of conserving energy, with a visual change in different colors. When the light is kept on for less than an hour, it grows green; after four hours, it goes yellow. And when it has been on for more than eight hours, guess what, an angry red then appears. Hopefully by this means, your kids will constantly turn lights off, therefore helping to cut down the power consumption.

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